[llvm] AMDGPU: Drop amdgpu-no-lds-kernel-id attribute in LDS lowering (PR #71481)

[Johannes Doerfert via llvm-commits]

https://github.com/jdoerfert approved this pull request.

LG.

I would like to teach the AMDGPU attributor about LDS to avoid this, but we can do that later.

https://github.com/llvm/llvm-project/pull/71481