skip _test_optional_float in BC check (#31786)
Summary:
Skip _test_optional_float
Pull Request resolved: https://github.com/pytorch/pytorch/pull/31786
Reviewed By: hl475
Differential Revision: D19265059
Pulled By: houseroad
fbshipit-source-id: 6b95bd3b8cad83a4c459c0603befaaeeade6cdff
