[llvm-branch-commits] [clang] clang/AMDGPU: Remove driver restriction on --gpu-max-threads-per-block (PR #204864)

[Matt Arsenault via llvm-branch-commits]

arsenm wrote:

I changed it to make the custom argument not functionally dead. Actual codegen handling is slightly more work 

https://github.com/llvm/llvm-project/pull/204864