Revert D25757721: [pytorch][PR] Run mypy on more test files
Test Plan: revert-hammer
Differential Revision:
D25757721 (https://github.com/pytorch/pytorch/commit/b7bfc723d3245bffce92d1b0a2cef68f48426a5e)
Original commit changeset: 44c396d8da9e
fbshipit-source-id: 58437d719285a4fecd8c05e487cc86fc2cebadff
