pytorch

cc07f968 - Revert D14361993: [pytorch][PR] [Onnx] - refactoring serialization of ONNX initializers to be name-based

Revert D14361993: [pytorch][PR] [Onnx] - refactoring serialization of ONNX initializers to be name-based Differential Revision: D14361993 Original commit changeset: da93e945d557 fbshipit-source-id: 15eea001fbcd059ac13903405aeb9ea182c6ee8b