Revert "clang/AMDGPU: Restore O3 checks in default-attributes.hip (llvm#115238)"

This reverts commit 889d677.

Caused the following build bot failures, author has failed to address:
https://lab.llvm.org/buildbot/#/builders/144/builds/11132
https://lab.llvm.org/buildbot/#/builders/46/builds/7541
https://lab.llvm.org/buildbot/#/builders/190/builds/9077

Please fix before recommitting.

Author: Weaver

clang/test/CodeGenHIP/default-attributes.hip

@@ -2,9 +2,6 @@
 // RUN: %clang_cc1 -triple amdgcn-amd-amdhsa -x hip -fno-ident -fcuda-is-device \
 // RUN:    -emit-llvm -o - %s | FileCheck -check-prefix=OPTNONE %s
 
-// RUN: %clang_cc1 -O3 -triple amdgcn-amd-amdhsa -x hip -fno-ident -fcuda-is-device \
-// RUN:    -emit-llvm -o - %s | FileCheck -check-prefix=OPT %s
-
 #define __device__ __attribute__((device))
 #define __global__ __attribute__((global))
 
@@ -13,10 +10,6 @@
 // OPTNONE: @llvm.compiler.used = appending addrspace(1) global [1 x ptr] [ptr addrspacecast (ptr addrspace(1) @__hip_cuid_ to ptr)], section "llvm.metadata"
 // OPTNONE: @__oclc_ABI_version = weak_odr hidden local_unnamed_addr addrspace(4) constant i32 500
 //.
-// OPT: @__hip_cuid_ = addrspace(1) global i8 0
-// OPT: @__oclc_ABI_version = weak_odr hidden local_unnamed_addr addrspace(4) constant i32 500
-// OPT: @llvm.compiler.used = appending addrspace(1) global [1 x ptr] [ptr addrspacecast (ptr addrspace(1) @__hip_cuid_ to ptr)], section "llvm.metadata"
-//.
 __device__ void extern_func();
 
 // OPTNONE: Function Attrs: convergent mustprogress noinline nounwind optnone
@@ -26,13 +19,6 @@ __device__ void extern_func();
 // OPTNONE-NEXT:    call void @_Z11extern_funcv() #[[ATTR3:[0-9]+]]
 // OPTNONE-NEXT:    ret void
 //
-// OPT: Function Attrs: convergent mustprogress nounwind
-// OPT-LABEL: define {{[^@]+}}@_Z4funcv
-// OPT-SAME: () local_unnamed_addr #[[ATTR0:[0-9]+]] {
-// OPT-NEXT:  entry:
-// OPT-NEXT:    tail call void @_Z11extern_funcv() #[[ATTR3:[0-9]+]]
-// OPT-NEXT:    ret void
-//
 __device__ void func() {
  extern_func();
 }
@@ -44,13 +30,6 @@ __device__ void func() {
 // OPTNONE-NEXT:    call void @_Z11extern_funcv() #[[ATTR3]]
 // OPTNONE-NEXT:    ret void
 //
-// OPT: Function Attrs: convergent mustprogress norecurse nounwind
-// OPT-LABEL: define {{[^@]+}}@_Z6kernelv
-// OPT-SAME: () local_unnamed_addr #[[ATTR2:[0-9]+]] {
-// OPT-NEXT:  entry:
-// OPT-NEXT:    tail call void @_Z11extern_funcv() #[[ATTR3]]
-// OPT-NEXT:    ret void
-//
 __global__ void kernel() {
  extern_func();
 }
@@ -60,16 +39,7 @@ __global__ void kernel() {
 // OPTNONE: attributes #[[ATTR2]] = { convergent mustprogress noinline norecurse nounwind optnone "amdgpu-flat-work-group-size"="1,1024" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "uniform-work-group-size"="true" }
 // OPTNONE: attributes #[[ATTR3]] = { convergent nounwind }
 //.
-// OPT: attributes #[[ATTR0]] = { convergent mustprogress nounwind "amdgpu-waves-per-eu"="4,10" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "uniform-work-group-size"="false" }
-// OPT: attributes #[[ATTR1:[0-9]+]] = { convergent nounwind "amdgpu-waves-per-eu"="4,10" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "uniform-work-group-size"="false" }
-// OPT: attributes #[[ATTR2]] = { convergent mustprogress norecurse nounwind "amdgpu-flat-work-group-size"="1,1024" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "uniform-work-group-size"="true" }
-// OPT: attributes #[[ATTR3]] = { convergent nounwind }
-//.
 // OPTNONE: [[META0:![0-9]+]] = !{i32 1, !"amdhsa_code_object_version", i32 500}
 // OPTNONE: [[META1:![0-9]+]] = !{i32 1, !"amdgpu_printf_kind", !"hostcall"}
 // OPTNONE: [[META2:![0-9]+]] = !{i32 1, !"wchar_size", i32 4}
 //.
-// OPT: [[META0:![0-9]+]] = !{i32 1, !"amdhsa_code_object_version", i32 500}
-// OPT: [[META1:![0-9]+]] = !{i32 1, !"amdgpu_printf_kind", !"hostcall"}
-// OPT: [[META2:![0-9]+]] = !{i32 1, !"wchar_size", i32 4}
-//.