Remove THCTensor.cu and THCTensorCopy.cu copy (#65491)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/65491
The only user of any of this code is THCStorage_copy, so I've
migrated that to call `Tensor.copy_` directly.
Test Plan: Imported from OSS
Reviewed By: H-Huang
Differential Revision: D31148183
Pulled By: ngimel
fbshipit-source-id: 92bab71306c84bc481c47a0615ebb811af2c2875
