Remove TH/THC Storage data and copy functions (#68127)
Summary:
Part of https://github.com/pytorch/pytorch/issues/67852
cc ezyang bhosmer smessmer ljk53 bdhirsh
Pull Request resolved: https://github.com/pytorch/pytorch/pull/68127
Reviewed By: mrshenli
Differential Revision: D32441885
Pulled By: ngimel
fbshipit-source-id: 1bbe7c8bed30bfe1737511a4f347fd9a8024dd99
