[llvm] [NFC][AMDGPU] Remove redundant CodeGen test coverage (PR #218057)

[Matt Arsenault via llvm-commits]

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@@ -1,43 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc -global-isel -mtriple=amdgpu12.00-amd-amdhsa < %s | FileCheck -check-prefixes=GFX12 %s
 
-; =============================================================================
-; atomicrmw or - generic address space (addrspace 0)
-; =============================================================================
-
-define i32 @atomicrmw_or_i32_generic(ptr addrspace(0) %ptr, i32 %val) {
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arsenm wrote:

s/or/xor/ instead of deleting? I assume this is a copy paste error 

https://github.com/llvm/llvm-project/pull/218057