Remove unnecessary conditional (#29901)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/29901
Signed-off-by: Edward Z. Yang <ezyang@fb.com>
Test Plan: Imported from OSS
Differential Revision: D18594828
Pulled By: ezyang
fbshipit-source-id: cf4ade2da9bf8769cfb3149713941aa9e5e0d197
