[LV] Remove noalias intrinsics handling from scalarizeInstruction (NFC).

This is now handled by the explicit unroller.

Author: fhahn

llvm/lib/Transforms/Vectorize/LoopVectorize.cpp

@@ -2325,12 +2325,6 @@ void InnerLoopVectorizer::scalarizeInstruction(const Instruction *Instr,
                                                VPTransformState &State) {
   assert(!Instr->getType()->isAggregateType() && "Can't handle vectors");
 
-  // llvm.experimental.noalias.scope.decl intrinsics must only be duplicated for
-  // the first lane and part.
-  if (isa<NoAliasScopeDeclInst>(Instr))
-    if (!Lane.isFirstLane())
-      return;
-
   // Does this instruction return a value ?
   bool IsVoidRetTy = Instr->getType()->isVoidTy();