[VPlan] Remove redundant printing final in VPlan::execute (#121048)

Multiple prints will cause problems when testing ir-bb

Author: LiqinWeng

llvm/lib/Transforms/Vectorize/VPlan.cpp

@@ -1002,11 +1002,6 @@ void VPlan::execute(VPTransformState *State) {
   setName("Final VPlan");
   LLVM_DEBUG(dump());
 
-  LLVM_DEBUG(dbgs() << "Executing best plan with VF=" << State->VF
-                    << ", UF=" << getUF() << '\n');
-  setName("Final VPlan");
-  LLVM_DEBUG(dump());
-
   // Disconnect the middle block from its single successor (the scalar loop
   // header) in both the CFG and DT. The branch will be recreated during VPlan
   // execution.