Revert D28877076: [pytorch][PR] torch.flip via TI
Test Plan: revert-hammer
Differential Revision:
D28877076 (https://github.com/pytorch/pytorch/commit/d82bc3feb86679ab9ecb5526f4cd99c3df0e9af5)
Original commit changeset: 4fa6eb519085
fbshipit-source-id: c81e7d3283ff6822db913bf9f49a1533268755d0
