[Hexagon][TTI] Remove two overrides which simply proxy to base class [NFC]

These serve no point, and slightly complicate a refectoring I'm working
on for this API.

Author: preames

llvm/lib/Target/Hexagon/HexagonTargetTransformInfo.cpp

@@ -138,20 +138,6 @@ ElementCount HexagonTTIImpl::getMinimumVF(unsigned ElemWidth,
   return ElementCount::getFixed((8 * ST.getVectorLength()) / ElemWidth);
 }
 
-InstructionCost HexagonTTIImpl::getScalarizationOverhead(
-    VectorType *Ty, const APInt &DemandedElts, bool Insert, bool Extract,
-    TTI::TargetCostKind CostKind) {
-  return BaseT::getScalarizationOverhead(Ty, DemandedElts, Insert, Extract,
-                                         CostKind);
-}
-
-InstructionCost
-HexagonTTIImpl::getOperandsScalarizationOverhead(ArrayRef<const Value *> Args,
-                                                 ArrayRef<Type *> Tys,
-                                                 TTI::TargetCostKind CostKind) {
-  return BaseT::getOperandsScalarizationOverhead(Args, Tys, CostKind);
-}
-
 InstructionCost HexagonTTIImpl::getCallInstrCost(Function *F, Type *RetTy,
                                                  ArrayRef<Type *> Tys,
                                                  TTI::TargetCostKind CostKind) {

llvm/lib/Target/Hexagon/HexagonTargetTransformInfo.h

@@ -103,14 +103,6 @@ class HexagonTTIImpl : public BasicTTIImplBase<HexagonTTIImpl> {
     return true;
   }
 
-  InstructionCost getScalarizationOverhead(VectorType *Ty,
-                                           const APInt &DemandedElts,
-                                           bool Insert, bool Extract,
-                                           TTI::TargetCostKind CostKind);
-  InstructionCost
-  getOperandsScalarizationOverhead(ArrayRef<const Value *> Args,
-                                   ArrayRef<Type *> Tys,
-                                   TTI::TargetCostKind CostKind);
   InstructionCost getCallInstrCost(Function *F, Type *RetTy,
                                    ArrayRef<Type *> Tys,
                                    TTI::TargetCostKind CostKind);