[llvm] Revert "[NVPTX] Add Volta Load/Store Atomics (.relaxed, .acquire, .release) and Volatile (.mmio/.volatile) support" (PR #99695)

[Artem Belevich via llvm-commits]

Artem-B wrote:

Looks like you may need to set [skip-precommit-approval](https://github.com/llvm/llvm-project/labels?q=skip-precommit-approval) label.

https://github.com/llvm/llvm-project/pull/99695