AMDGPU: Remove "gws" feature from generic targets

  Here "generic targets" means when no target is specified. This
is bexause gfx12 does not have this festure, and thus it is no longer
universally available.

Fixes: SWDEV-541399

Author: changpeng

llvm/lib/Target/AMDGPU/GCNProcessors.td

@@ -9,11 +9,11 @@
 // The code produced for "generic" is only useful for tests and cannot
 // reasonably be expected to execute on any particular target.
 def : ProcessorModel<"generic", NoSchedModel,
-  [FeatureGDS, FeatureGWS]
+  [FeatureGDS]
 >;
 
 def : ProcessorModel<"generic-hsa", NoSchedModel,
-  [FeatureGDS, FeatureGWS, FeatureFlatAddressSpace]
+  [FeatureGDS, FeatureFlatAddressSpace]
 >;
 
 //===------------------------------------------------------------===//