pytorch

9c8b67b1 - Revert D19905015: Revert D19858239: [pytorch][PR] Refactor and add VS 14.16 and 2019 CI for Windows

Revert D19905015: Revert D19858239: [pytorch][PR] Refactor and add VS 14.16 and 2019 CI for Windows Test Plan: revert-hammer Differential Revision: D19905015 Original commit changeset: b117e44d5552 fbshipit-source-id: a10c78aed953434f69f466bdd36f914334ba82f3