[clang] [llvm] [MC] Remove UseAssemblerInfoForParsing (PR #91082)

[Krzysztof Parzyszek via cfe-commits]

kparzysz wrote:

> But why? I don't know what business MLIR could possibly have touching this, for AMDGPU of all things

I don't know why, but my build is failing now.

https://github.com/llvm/llvm-project/pull/91082