[llvm] [VPlan] Migrate VPBuilder to VPInsertPt fully (NFC) (PR #209764)

[Ramkumar Ramachandra via llvm-commits]

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@@ -25,13 +25,13 @@
 #define LLVM_TRANSFORMS_VECTORIZE_LOOPVECTORIZATIONPLANNER_H
 
 #include "VPlan.h"
-#include "llvm/ADT/SmallSet.h"
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artagnon wrote:

Just noting here that small unrelated improvements like this would never happen independently, as it's not worth anyone's time to create a PR and review changes like these. Reverted for now.

https://github.com/llvm/llvm-project/pull/209764