pytorch

71775093 - Revert [DDP] Support not all outputs used in loss calculation (#61497)

Revert [DDP] Support not all outputs used in loss calculation (#61497) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/61497 Reverts [DDP] Support not all outputs used in loss calculation ghstack-source-id: 133589153 Test Plan: CI, ping authors to run their workflow on this diff Reviewed By: zhaojuanmao Differential Revision: D29642892 fbshipit-source-id: 81a15b9ab3329602f34d3758bb0799005a053d4f