[PyTorch][easy] Fix TODOs in CppFunction constructors (#51315)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/51315
The TODOs said to remove this wrapper, and it seems that it can be removed easily.
ghstack-source-id: 121363465
Test Plan: CI
Reviewed By: ezyang
Differential Revision: D26137147
fbshipit-source-id: f1e5971dca071f37400d77cc823214527e4231bc
