pytorch

a5dcd3c4 - Revert D28240105: [pytorch][PR] Fix DistributedSampler mem usage on large datasets

Revert D28240105: [pytorch][PR] Fix DistributedSampler mem usage on large datasets Test Plan: revert-hammer Differential Revision: D28240105 (https://github.com/pytorch/pytorch/commit/a0ce8da26ee5d5b2842d4eacd94f6e26b610c777) Original commit changeset: 4c6aa493d0f7 fbshipit-source-id: 8a0e17764c2f26c8316f88ad6c8772b08883ceee