[llvm] Fix build failure caused by PR 68235 (PR #71219)

[via llvm-commits]

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@@ -1268,25 +1216,7 @@ static llvm::AttributeList
 fixUpTypesInByValAndStructRetAttributes(llvm::FunctionType *fnType,
                                         llvm::AttributeList attrList) {
   auto &context = fnType->getContext();
-  if (!context.supportsTypedPointers())
-    return attrList;
-
-  for (unsigned i = 0; i < fnType->getNumParams(); ++i) {
-    auto paramTy = fnType->getParamType(i);
-    auto attrListIndex = llvm::AttributeList::FirstArgIndex + i;
-    if (attrList.hasParamAttr(i, llvm::Attribute::StructRet) &&
-        paramTy->getNonOpaquePointerElementType() !=
-            attrList.getParamStructRetType(i))
-      attrList = attrList.replaceAttributeTypeAtIndex(
-          context, attrListIndex, llvm::Attribute::StructRet,
-          paramTy->getNonOpaquePointerElementType());
-    if (attrList.hasParamAttr(i, llvm::Attribute::ByVal) &&
-        paramTy->getNonOpaquePointerElementType() !=
-            attrList.getParamByValType(i))
-      attrList = attrList.replaceAttributeTypeAtIndex(
-          context, attrListIndex, llvm::Attribute::ByVal,
-          paramTy->getNonOpaquePointerElementType());
-  }
+  // supportsTypedPointers always returns false now.
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kyulee-com wrote:

Maybe start with `TODO:`?

https://github.com/llvm/llvm-project/pull/71219