Clean up dead code (#69296)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/69296
remove a commented block of code that was accidentally checked in
Test Plan: no testable changes
Reviewed By: alanwaketan
Differential Revision: D32799197
fbshipit-source-id: d3eb05cbafb0f5a4a3f41c17f66ca6d0c2fc60b7
