Enable some test cases in `test_memory_format_operators` (#38648)
Summary:
Re-enable some test cases in `test_memory_format_operators` since their corresponding issue has been fixed.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/38648
Differential Revision: D21689085
Pulled By: VitalyFedyunin
fbshipit-source-id: 0aa09e0bf31ba98c8ad0191ac3afd31dda0f1d42
