Delete duplicate code (#890)

Summary: Pull Request resolved: #890

Reviewed By: joshuadeng

Differential Revision: D42008346

Pulled By: kit1980

fbshipit-source-id: f33ac0ccea8b8f099500bc83dfaa43b4a095fed0

Author: kit1980

contrib/dynamic_embedding/src/torchrec_dynamic_embedding/id_transformer_group.py

@@ -166,12 +166,6 @@ def __contains__(self, path):
         """
         return path in self._id_transformer_collections
 
-    def __contains__(self, path):
-        """
-        Check if there is transformer for the path.
-        """
-        return path in self._id_transformer_collections
-
     def __del__(self):
         """
         Stop the parallel threads