Delete stable-sort-only-works-on-cpu warning (#61685)
Summary:
stable GPU sorting is implemented by https://github.com/pytorch/pytorch/pull/56821
Fixes https://github.com/pytorch/pytorch/issues/61682
Pull Request resolved: https://github.com/pytorch/pytorch/pull/61685
Reviewed By: gchanan
Differential Revision: D29704864
Pulled By: malfet
fbshipit-source-id: 3a5aa24bf6507be63844fe6016fb9e3c682f4d84
