[clang] AMDGPU: Remove "gws" from the “read-only” target feature list (PR #148141)

[Shilei Tian via cfe-commits]

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@@ -266,7 +266,7 @@ AMDGPUTargetInfo::AMDGPUTargetInfo(const llvm::Triple &Triple,
 
   MaxAtomicPromoteWidth = MaxAtomicInlineWidth = 64;
   CUMode = !(GPUFeatures & llvm::AMDGPU::FEATURE_WGP);
-  for (auto F : {"image-insts", "gws", "vmem-to-lds-load-insts"})
+  for (auto F : {"image-insts", "vmem-to-lds-load-insts"})
     ReadOnlyFeatures.insert(F);
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shiltian wrote:

What does this `ReadOnlyFeatures` do?

https://github.com/llvm/llvm-project/pull/148141