[clang] [CIR][NFC] Fix warnings in ClangIR code (PR #133134)

[Morris Hafner via cfe-commits]

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@@ -1366,8 +1366,7 @@ mlir::Value 
ScalarExprEmitter::VisitUnaryExprOrTypeTraitExpr(
   const mlir::Location loc = cgf.getLoc(e->getSourceRange());
   if (auto kind = e->getKind();
       kind == UETT_SizeOf || kind == UETT_DataSizeOf) {
-    if (const VariableArrayType *variableArrTy =
-            cgf.getContext().getAsVariableArrayType(typeToSize)) {
+    if (cgf.getContext().getAsVariableArrayType(typeToSize)) {
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mmha wrote:

Same here.

https://github.com/llvm/llvm-project/pull/133134
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