Remove cuda/Loops.cuh dependency on native_functions.yaml (#64168)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/64168
Test Plan: Imported from OSS
Reviewed By: gchanan
Differential Revision: D30728582
Pulled By: dagitses
fbshipit-source-id: 99dcbb9bb790dd0440d498593ac43e2c18e54a0c
