[llvm] [llvm][ARM][AArch64] Don't use module attr as function attr. (PR #83154)

[Nick Desaulniers via llvm-commits]

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@@ -11584,10 +11584,6 @@ void SelectionDAGBuilder::lowerWorkItem(SwitchWorkListItem W, Value *Cond,
             HasBranchTargetEnforcement =
                 CurFunc.getFnAttribute("branch-target-enforcement")
                     .getValueAsBool();
-          } else {
-            HasBranchTargetEnforcement =
-                CurMF->getMMI().getModule()->getModuleFlag(
-                    "branch-target-enforcement");
           }
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nickdesaulniers wrote:

can remove `{}` for single statement `if`s.

https://github.com/llvm/llvm-project/pull/83154