[llvm] DAG: Fix constructing a temporary TargetTransformInfo instance (PR #168480)

[Matt Arsenault via llvm-commits]

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@@ -58,9 +58,7 @@ class SelectionDAGISel {
   AssumptionCache *AC = nullptr;
   GCFunctionInfo *GFI = nullptr;
   SSPLayoutInfo *SP = nullptr;
-#if !defined(NDEBUG) && LLVM_ENABLE_ABI_BREAKING_CHECKS
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arsenm wrote:

It was only used in debug printing, for some reason 

https://github.com/llvm/llvm-project/pull/168480