Revert D33716039: [pytorch][PR] Add ONEDNN quantization backend
Test Plan: revert-hammer
Differential Revision:
D33716039 (https://github.com/pytorch/pytorch/commit/989b24855efe0a8287954040c89d679625dcabe1)
Original commit changeset: 6f7bb807e857
Original Phabricator Diff: D33716039 (https://github.com/pytorch/pytorch/commit/989b24855efe0a8287954040c89d679625dcabe1)
fbshipit-source-id: ed233c5b99d4edb7d5a9d6c600825c78555f16d0
(cherry picked from commit d3e1f825b06ef67adb13623ccb7cbf1b700c1dd5)
