Revert "switch back to azure pipelines" (#29910)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/29910
This reverts commit 6de1016f9dbf624f93f8c8d45feb56f8c222b7a6.
Test Plan: Imported from OSS
Differential Revision: D18532474
Pulled By: suo
fbshipit-source-id: 852fdcf21bd4aa7ca94322d64e43aab5a822cabc
