remove unused stuff

Author: tgymnich

llvm/include/llvm/CodeGen/GlobalISel/MIPatternMatch.h

@@ -15,12 +15,9 @@
 
 #include "llvm/ADT/APInt.h"
 #include "llvm/ADT/FloatingPointMode.h"
-#include "llvm/CodeGen/GlobalISel/GenericMachineInstrs.h"
 #include "llvm/CodeGen/GlobalISel/Utils.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
-#include "llvm/CodeGen/TargetOpcodes.h"
 #include "llvm/IR/InstrTypes.h"
-#include <optional>
 
 namespace llvm {
 namespace MIPatternMatch {
@@ -88,12 +85,6 @@ inline std::optional<int64_t> matchConstant(Register Reg,
   return getIConstantVRegSExtVal(Reg, MRI);
 }
 
-template <>
-inline std::optional<uint64_t> matchConstant(Register Reg,
-                                             const MachineRegisterInfo &MRI) {
-  return getIConstantVRegZExtVal(Reg, MRI);
-}
-
 template <typename ConstT> struct ConstantMatch {
   ConstT &CR;
   ConstantMatch(ConstT &C) : CR(C) {}
@@ -129,12 +120,6 @@ matchConstantSplat(Register Reg, const MachineRegisterInfo &MRI) {
   return getIConstantSplatSExtVal(Reg, MRI);
 }
 
-template <>
-inline std::optional<uint64_t>
-matchConstantSplat(Register Reg, const MachineRegisterInfo &MRI) {
-  return getIConstantSplatZExtVal(Reg, MRI);
-}
-
 template <typename ConstT> struct ICstOrSplatMatch {
   ConstT &CR;
   ICstOrSplatMatch(ConstT &C) : CR(C) {}