pytorch

478098aa - Revert D29801652: Refactor Tensor::to to call a primitive that is not copy_.

Revert D29801652: Refactor Tensor::to to call a primitive that is not copy_. Test Plan: revert-hammer Differential Revision: D29801652 (https://github.com/pytorch/pytorch/commit/29bb3f4647ad92be6dce336e57401f795d3f57f1) Original commit changeset: bb01eb1acf3d fbshipit-source-id: 93693bad8068d47a3a4c16f34f300e03ea573897