Remove __forceinline__ hipification step. (#15229)
Summary:
The HIP definition now correctly contains the inline attribute.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/15229
Differential Revision: D13470962
Pulled By: bddppq
fbshipit-source-id: 34f8361bda5f3dce20a2eeb530c3a25d1b1bdd06
