pytorch

d6727793 - [CI][treehug] Disable xenial_py2.7 tests due to mypy min version py3.5

[CI][treehug] Disable xenial_py2.7 tests due to mypy min version py3.5 Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/33159 Test Plan: Imported from OSS Differential Revision: D19822400 Pulled By: IvanKobzarev fbshipit-source-id: 8e7b561e6a6181ec1f9b6f56a539ddcb538b3858