[clang] [FMV][AArch64] Do not emit ifunc resolver on use. (PR #97761)

[Tomas Matheson via cfe-commits]

================
@@ -4224,10 +4204,8 @@ void CodeGenModule::emitMultiVersionFunctions() {
             llvm::Function *Func = createFunction(CurFD);
             Options.emplace_back(Func, TA->getArchitecture(), Feats);
           } else if (const auto *TVA = CurFD->getAttr<TargetVersionAttr>()) {
-            bool HasDefaultDef = TVA->isDefaultVersion() &&
-                                 CurFD->doesThisDeclarationHaveABody();
-            HasDefaultDecl |= TVA->isDefaultVersion();
-            ShouldEmitResolver |= (CurFD->isUsed() || HasDefaultDef);
+            ShouldEmitResolver |= (TVA->isDefaultVersion() &&
+                                   CurFD->doesThisDeclarationHaveABody());
----------------
tmatheson-arm wrote:

```suggestion
            if (TVA->isDefaultVersion() && 
CurFD->doesThisDeclarationHaveABody())
              ShouldEmitResolver = true;
```

https://github.com/llvm/llvm-project/pull/97761
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