pytorch

4a0a38c1 - Revert D21652452: [pytorch][PR] Fix for num_threads==1 in OpenMP "parallel for"

Revert D21652452: [pytorch][PR] Fix for num_threads==1 in OpenMP "parallel for" Test Plan: revert-hammer Differential Revision: D21652452 Original commit changeset: 2cda7777c0ea fbshipit-source-id: fdd9a0346ce32a962766f57e13357dd2bc60d8b8