[llvm] [VPlan] Manage noalias/alias_scope metadata in VPlan. (NFC) (PR #136450)

[via llvm-commits]

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@@ -2588,7 +2601,6 @@ static void scalarizeInstruction(const Instruction *Instr,
       InputLane = VPLane::getFirstLane();
     Cloned->setOperand(I.index(), State.get(Operand, InputLane));
   }
-  State.addNewMetadata(Cloned, Instr);
 
   // Place the cloned scalar in the new loop.
   State.Builder.Insert(Cloned);
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ayalz wrote:

Line 2600 below has `State.AC->registerAssumption(II);`, so State still needs AC?

https://github.com/llvm/llvm-project/pull/136450