[llvm] [VPlan] Simplify branch on False in VPlan transform (NFC). (PR #140409)

[via llvm-commits]

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@@ -1847,11 +1847,21 @@ static void removeBranchOnCondTrue(VPlan &Plan) {
   using namespace llvm::VPlanPatternMatch;
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ayalz wrote:

Name of `removeBranchOnCondTrue()` should change, to, e.g., `removeBranchOnConst()`?

https://github.com/llvm/llvm-project/pull/140409