pytorch

f1e575a0 - Revert D20496044: [pytorch][PR] Change AccumulateGrad to yield `.grad`s that match weights' memory layout

Revert D20496044: [pytorch][PR] Change AccumulateGrad to yield `.grad`s that match weights' memory layout Test Plan: revert-hammer Differential Revision: D20496044 Original commit changeset: 248d680f4b1b fbshipit-source-id: 6462b25e3fb9c8596c1da443389089f09c32df4d