Revert "change: update image uri config for pytorch 1.6.0 inference (#1864)"

This reverts commit 942e6d4.

Author: chuyang-deng

src/sagemaker/image_uri_config/pytorch.json

@@ -53,8 +53,7 @@
             "1.2": "1.2.0",
             "1.3": "1.3.1",
             "1.4": "1.4.0",
-            "1.5": "1.5.0",
-            "1.6": "1.6.0"
+            "1.5": "1.5.0"
         },
         "versions": {
             "0.4.0": {
@@ -285,38 +284,6 @@
                     "us-west-2": "763104351884"
                 },
                 "repository": "pytorch-inference"
-            },
-            "1.6.0": {
-                "py_versions": [
-                    "py3"
-                ],
-                "registries": {
-                    "af-south-1": "626614931356",
-                    "ap-east-1": "871362719292",
-                    "ap-northeast-1": "763104351884",
-                    "ap-northeast-2": "763104351884",
-                    "ap-south-1": "763104351884",
-                    "ap-southeast-1": "763104351884",
-                    "ap-southeast-2": "763104351884",
-                    "ca-central-1": "763104351884",
-                    "cn-north-1": "727897471807",
-                    "cn-northwest-1": "727897471807",
-                    "eu-central-1": "763104351884",
-                    "eu-north-1": "763104351884",
-                    "eu-west-1": "763104351884",
-                    "eu-west-2": "763104351884",
-                    "eu-west-3": "763104351884",
-                    "eu-south-1": "692866216735",
-                    "me-south-1": "217643126080",
-                    "sa-east-1": "763104351884",
-                    "us-east-1": "763104351884",
-                    "us-east-2": "763104351884",
-                    "us-gov-west-1": "442386744353",
-                    "us-iso-east-1": "886529160074",
-                    "us-west-1": "763104351884",
-                    "us-west-2": "763104351884"
-                },
-                "repository": "pytorch-inference"
             }
         }
     },