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

[via llvm-commits]

gonzalobg wrote:

@Artem-B lets merge #99649 first; this one builds on top of that one.

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