[llvm] [AMDGPU] Exclude implicit uses and defs in SIInsertWaitcnts. NFC. (PR #108953)

[Jay Foad via llvm-commits]

https://github.com/jayfoad commented:

> Change all_uses/all_defs to uses/defs where it obviously cannot happen.

I don't understand. Do you mean it is obvious that these instructions have no implicit operands? Or you somehow know that they are not important ones?

https://github.com/llvm/llvm-project/pull/108953