remove unnecessary skips in rsub OpInfo (#69973)
Summary:
Skips are unnecessary as https://github.com/pytorch/pytorch/issues/53797 was fixed
Thanks Lezcano for finding the same.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/69973
Reviewed By: mruberry
Differential Revision: D33161663
Pulled By: anjali411
fbshipit-source-id: 06b75bc5fc0cf90239f17835c07b86b2282ec846
