Remove native_functions.yaml dependency from unary ops (#64170)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/64170
Test Plan: Imported from OSS
Reviewed By: gchanan, ezyang
Differential Revision: D30728578
Pulled By: dagitses
fbshipit-source-id: 70baa90d0834e68324504c74064a1d1790193483
