pytorch

039dc908 - Revert D19521853: [pytorch][PR] Mobile Backend: NHWC memory layout + XNNPACK integration.

Revert D19521853: [pytorch][PR] Mobile Backend: NHWC memory layout + XNNPACK integration. Test Plan: revert-hammer Differential Revision: D19521853 Original commit changeset: 99a1fab31d0e fbshipit-source-id: 76dfc1f481797ba2386997533cf19957637687d6