remove app indexing from the firebase-tutorial-bundle generator (#3906)

Co-authored-by: David Motsonashvili <[email protected]>

Author: 2 people

buildSrc/src/main/java/com/google/firebase/gradle/bomgenerator/RecipeVersionWriter.java

@@ -143,12 +143,6 @@ public String generateVersionUpdate() {
             "Remote Config KTX",
             "remote-config-ktx-dependency",
             "com.google.firebase:firebase-config-ktx"));
-    outputBuilder.append(
-        generateVersionVariable(
-            depsByArtifactId,
-            "App Indexing",
-            "appindexing-dependency",
-            "com.google.firebase:firebase-appindexing"));
     outputBuilder.append(
         generateVersionVariable(
             depsByArtifactId,