Kill dead scalar_check. (#33695)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/33695
I'm not sure how this stuck around, but it has no effect.
Test Plan: Imported from OSS
Differential Revision: D20068867
Pulled By: gchanan
fbshipit-source-id: 79191338a8bc7a195e2b7265005ca6f00aab3818
