pytorch

08860721 - Revert D18195584: Additional autograd unit tests for Python UDFs.

Revert D18195584: Additional autograd unit tests for Python UDFs. Test Plan: revert-hammer Differential Revision: D18195584 Original commit changeset: b795daf644ba fbshipit-source-id: 413dac34f1a28e0a591893f43e116f006fd3f2be