feat(retail): update the api

#### retail:v2

The following keys were deleted:
- schemas.GoogleCloudRetailV2CatalogAttributeFacetConfigMergedFacet.properties.mergedFacetValues (Total Keys: 3)

#### retail:v2alpha

The following keys were deleted:
- schemas.GoogleCloudRetailV2alphaBranch.properties.productCounts (Total Keys: 5)
- schemas.GoogleCloudRetailV2alphaCatalogAttributeFacetConfigMergedFacet.properties.mergedFacetValues (Total Keys: 3)

#### retail:v2beta

The following keys were deleted:
- schemas.GoogleCloudRetailV2betaCatalogAttributeFacetConfigMergedFacet.properties.mergedFacetValues (Total Keys: 3)

Author: yoshi-automation

docs/dyn/retail_v2.projects.locations.catalogs.attributesConfig.html

@@ -120,14 +120,6 @@ <h3>Method Details</h3>
       ],
       &quot;mergedFacet&quot;: { # The current facet key (i.e. attribute config) maps into the merged_facet_key. A facet key can have at most one child. The current facet key and the merged facet key need both to be textual custom attributes or both numerical custom attributes (same type). # Use this field only if you want to merge a facet key into another facet key.
         &quot;mergedFacetKey&quot;: &quot;A String&quot;, # The merged facet key should be a valid facet key that is different than the facet key of the current catalog attribute. We refer this is merged facet key as the child of the current catalog attribute. This merged facet key can&#x27;t be a parent of another facet key (i.e. no directed path of length 2). This merged facet key needs to be either a textual custom attribute or a numerical custom attribute.
-        &quot;mergedFacetValues&quot;: [ # Each instance is a list of facet values that map into the same (possibly different) merged facet value. For the current attribute config, each facet value should map to at most one merged facet value.
-          { # Replaces a set of textual facet values by the same (possibly different) merged facet value. Each facet value should appear at most once as a value per CatalogAttribute. This feature is available only for textual custom attributes.
-            &quot;mergedValue&quot;: &quot;A String&quot;, # All the previous values are replaced by this merged facet value. This merged_value must be non-empty and can have up to 128 characters.
-            &quot;values&quot;: [ # All the facet values that are replaces by the same merged_value that follows. The maximum number of values per MergedFacetValue is 25. Each value can have up to 128 characters.
-              &quot;A String&quot;,
-            ],
-          },
-        ],
       },
       &quot;mergedFacetValues&quot;: [ # Each instance replaces a list of facet values by a merged facet value. If a facet value is not in any list, then it will stay the same. To avoid conflicts, only paths of length 1 are accepted. In other words, if &quot;dark_blue&quot; merged into &quot;BLUE&quot;, then the latter can&#x27;t merge into &quot;blues&quot; because this would create a path of length 2. The maximum number of instances of MergedFacetValue per CatalogAttribute is 100. This feature is available only for textual custom attributes.
         { # Replaces a set of textual facet values by the same (possibly different) merged facet value. Each facet value should appear at most once as a value per CatalogAttribute. This feature is available only for textual custom attributes.
@@ -187,14 +179,6 @@ <h3>Method Details</h3>
         ],
         &quot;mergedFacet&quot;: { # The current facet key (i.e. attribute config) maps into the merged_facet_key. A facet key can have at most one child. The current facet key and the merged facet key need both to be textual custom attributes or both numerical custom attributes (same type). # Use this field only if you want to merge a facet key into another facet key.
           &quot;mergedFacetKey&quot;: &quot;A String&quot;, # The merged facet key should be a valid facet key that is different than the facet key of the current catalog attribute. We refer this is merged facet key as the child of the current catalog attribute. This merged facet key can&#x27;t be a parent of another facet key (i.e. no directed path of length 2). This merged facet key needs to be either a textual custom attribute or a numerical custom attribute.
-          &quot;mergedFacetValues&quot;: [ # Each instance is a list of facet values that map into the same (possibly different) merged facet value. For the current attribute config, each facet value should map to at most one merged facet value.
-            { # Replaces a set of textual facet values by the same (possibly different) merged facet value. Each facet value should appear at most once as a value per CatalogAttribute. This feature is available only for textual custom attributes.
-              &quot;mergedValue&quot;: &quot;A String&quot;, # All the previous values are replaced by this merged facet value. This merged_value must be non-empty and can have up to 128 characters.
-              &quot;values&quot;: [ # All the facet values that are replaces by the same merged_value that follows. The maximum number of values per MergedFacetValue is 25. Each value can have up to 128 characters.
-                &quot;A String&quot;,
-              ],
-            },
-          ],
         },
         &quot;mergedFacetValues&quot;: [ # Each instance replaces a list of facet values by a merged facet value. If a facet value is not in any list, then it will stay the same. To avoid conflicts, only paths of length 1 are accepted. In other words, if &quot;dark_blue&quot; merged into &quot;BLUE&quot;, then the latter can&#x27;t merge into &quot;blues&quot; because this would create a path of length 2. The maximum number of instances of MergedFacetValue per CatalogAttribute is 100. This feature is available only for textual custom attributes.
           { # Replaces a set of textual facet values by the same (possibly different) merged facet value. Each facet value should appear at most once as a value per CatalogAttribute. This feature is available only for textual custom attributes.
@@ -275,14 +259,6 @@ <h3>Method Details</h3>
         ],
         &quot;mergedFacet&quot;: { # The current facet key (i.e. attribute config) maps into the merged_facet_key. A facet key can have at most one child. The current facet key and the merged facet key need both to be textual custom attributes or both numerical custom attributes (same type). # Use this field only if you want to merge a facet key into another facet key.
           &quot;mergedFacetKey&quot;: &quot;A String&quot;, # The merged facet key should be a valid facet key that is different than the facet key of the current catalog attribute. We refer this is merged facet key as the child of the current catalog attribute. This merged facet key can&#x27;t be a parent of another facet key (i.e. no directed path of length 2). This merged facet key needs to be either a textual custom attribute or a numerical custom attribute.
-          &quot;mergedFacetValues&quot;: [ # Each instance is a list of facet values that map into the same (possibly different) merged facet value. For the current attribute config, each facet value should map to at most one merged facet value.
-            { # Replaces a set of textual facet values by the same (possibly different) merged facet value. Each facet value should appear at most once as a value per CatalogAttribute. This feature is available only for textual custom attributes.
-              &quot;mergedValue&quot;: &quot;A String&quot;, # All the previous values are replaced by this merged facet value. This merged_value must be non-empty and can have up to 128 characters.
-              &quot;values&quot;: [ # All the facet values that are replaces by the same merged_value that follows. The maximum number of values per MergedFacetValue is 25. Each value can have up to 128 characters.
-                &quot;A String&quot;,
-              ],
-            },
-          ],
         },
         &quot;mergedFacetValues&quot;: [ # Each instance replaces a list of facet values by a merged facet value. If a facet value is not in any list, then it will stay the same. To avoid conflicts, only paths of length 1 are accepted. In other words, if &quot;dark_blue&quot; merged into &quot;BLUE&quot;, then the latter can&#x27;t merge into &quot;blues&quot; because this would create a path of length 2. The maximum number of instances of MergedFacetValue per CatalogAttribute is 100. This feature is available only for textual custom attributes.
           { # Replaces a set of textual facet values by the same (possibly different) merged facet value. Each facet value should appear at most once as a value per CatalogAttribute. This feature is available only for textual custom attributes.
@@ -344,14 +320,6 @@ <h3>Method Details</h3>
       ],
       &quot;mergedFacet&quot;: { # The current facet key (i.e. attribute config) maps into the merged_facet_key. A facet key can have at most one child. The current facet key and the merged facet key need both to be textual custom attributes or both numerical custom attributes (same type). # Use this field only if you want to merge a facet key into another facet key.
         &quot;mergedFacetKey&quot;: &quot;A String&quot;, # The merged facet key should be a valid facet key that is different than the facet key of the current catalog attribute. We refer this is merged facet key as the child of the current catalog attribute. This merged facet key can&#x27;t be a parent of another facet key (i.e. no directed path of length 2). This merged facet key needs to be either a textual custom attribute or a numerical custom attribute.
-        &quot;mergedFacetValues&quot;: [ # Each instance is a list of facet values that map into the same (possibly different) merged facet value. For the current attribute config, each facet value should map to at most one merged facet value.
-          { # Replaces a set of textual facet values by the same (possibly different) merged facet value. Each facet value should appear at most once as a value per CatalogAttribute. This feature is available only for textual custom attributes.
-            &quot;mergedValue&quot;: &quot;A String&quot;, # All the previous values are replaced by this merged facet value. This merged_value must be non-empty and can have up to 128 characters.
-            &quot;values&quot;: [ # All the facet values that are replaces by the same merged_value that follows. The maximum number of values per MergedFacetValue is 25. Each value can have up to 128 characters.
-              &quot;A String&quot;,
-            ],
-          },
-        ],
       },
       &quot;mergedFacetValues&quot;: [ # Each instance replaces a list of facet values by a merged facet value. If a facet value is not in any list, then it will stay the same. To avoid conflicts, only paths of length 1 are accepted. In other words, if &quot;dark_blue&quot; merged into &quot;BLUE&quot;, then the latter can&#x27;t merge into &quot;blues&quot; because this would create a path of length 2. The maximum number of instances of MergedFacetValue per CatalogAttribute is 100. This feature is available only for textual custom attributes.
         { # Replaces a set of textual facet values by the same (possibly different) merged facet value. Each facet value should appear at most once as a value per CatalogAttribute. This feature is available only for textual custom attributes.
@@ -412,14 +380,6 @@ <h3>Method Details</h3>
         ],
         &quot;mergedFacet&quot;: { # The current facet key (i.e. attribute config) maps into the merged_facet_key. A facet key can have at most one child. The current facet key and the merged facet key need both to be textual custom attributes or both numerical custom attributes (same type). # Use this field only if you want to merge a facet key into another facet key.
           &quot;mergedFacetKey&quot;: &quot;A String&quot;, # The merged facet key should be a valid facet key that is different than the facet key of the current catalog attribute. We refer this is merged facet key as the child of the current catalog attribute. This merged facet key can&#x27;t be a parent of another facet key (i.e. no directed path of length 2). This merged facet key needs to be either a textual custom attribute or a numerical custom attribute.
-          &quot;mergedFacetValues&quot;: [ # Each instance is a list of facet values that map into the same (possibly different) merged facet value. For the current attribute config, each facet value should map to at most one merged facet value.
-            { # Replaces a set of textual facet values by the same (possibly different) merged facet value. Each facet value should appear at most once as a value per CatalogAttribute. This feature is available only for textual custom attributes.
-              &quot;mergedValue&quot;: &quot;A String&quot;, # All the previous values are replaced by this merged facet value. This merged_value must be non-empty and can have up to 128 characters.
-              &quot;values&quot;: [ # All the facet values that are replaces by the same merged_value that follows. The maximum number of values per MergedFacetValue is 25. Each value can have up to 128 characters.
-                &quot;A String&quot;,
-              ],
-            },
-          ],
         },
         &quot;mergedFacetValues&quot;: [ # Each instance replaces a list of facet values by a merged facet value. If a facet value is not in any list, then it will stay the same. To avoid conflicts, only paths of length 1 are accepted. In other words, if &quot;dark_blue&quot; merged into &quot;BLUE&quot;, then the latter can&#x27;t merge into &quot;blues&quot; because this would create a path of length 2. The maximum number of instances of MergedFacetValue per CatalogAttribute is 100. This feature is available only for textual custom attributes.
           { # Replaces a set of textual facet values by the same (possibly different) merged facet value. Each facet value should appear at most once as a value per CatalogAttribute. This feature is available only for textual custom attributes.