Remove debug vestige (#42277)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/42277
Test Plan: Imported from OSS
Reviewed By: lw
Differential Revision: D22853481
Pulled By: mrshenli
fbshipit-source-id: 74e58c532d8f872c1dd830573b2a4c4c86410de2
