[llvm] [AMDGPU] Remove verification failing cases due to bundle (PR #139868)

[Matt Arsenault via llvm-commits]

arsenm wrote:

> 
> Hi @arsenm , I'm not sure if it will block the gate way check with expensive build??

EXPENSIVE_CHECKS just changes the default to on, an explicit disable flag wins.

> Maybe mark it with XFAIL in the meantime and add a comment in it ?

XFAIL is too permissive, it will continue to fail if the verifier failure is fixed and the output is different 

https://github.com/llvm/llvm-project/pull/139868