Update

Author: JamesNK

src/Grpc/JsonTranscoding/test/Microsoft.AspNetCore.Grpc.JsonTranscoding.Tests/Proto/transcoding.proto

@@ -246,14 +246,3 @@ message PrefixEnumType {
   }
   PrefixEnum single_enum = 1;
 }
-
-/*
-message CollisionPrefixEnumType {
-  enum CollisionPrefixEnum {
-    COLLISION_PREFIX_ENUM_UNSPECIFIED = 0;
-    COLLISION_PREFIX_ENUM_FOO = 1;
-    FOO = 2;
-  }
-  CollisionPrefixEnum single_enum = 1;
-}
-*/