pytorch

afd5237a - Revert D28800692: [nnc] Enable CPU fusion inside Facebook, take 3

Revert D28800692: [nnc] Enable CPU fusion inside Facebook, take 3 Test Plan: revert-hammer Differential Revision: D28800692 (https://github.com/pytorch/pytorch/commit/6e7dae9cecad51eb274764eb6ac1569d62c78520) Original commit changeset: d791c3b2ccd7 fbshipit-source-id: 5042fecfbab59181572013bf39760bc716e86430