[RISCV] Remove unused variables. NFC

Author: topperc

llvm/lib/Target/RISCV/RISCVISelLowering.cpp

@@ -3585,10 +3585,8 @@ template SDValue RISCVTargetLowering::getAddr<JumpTableSDNode>(
 SDValue RISCVTargetLowering::lowerGlobalAddress(SDValue Op,
                                                 SelectionDAG &DAG) const {
   SDLoc DL(Op);
-  EVT Ty = Op.getValueType();
   GlobalAddressSDNode *N = cast<GlobalAddressSDNode>(Op);
   assert(N->getOffset() == 0 && "unexpected offset in global node");
-  MVT XLenVT = Subtarget.getXLenVT();
 
   const GlobalValue *GV = N->getGlobal();
   bool IsLocal = getTargetMachine().shouldAssumeDSOLocal(*GV->getParent(), GV);
@@ -3699,10 +3697,8 @@ SDValue RISCVTargetLowering::getDynamicTLSAddr(GlobalAddressSDNode *N,
 SDValue RISCVTargetLowering::lowerGlobalTLSAddress(SDValue Op,
                                                    SelectionDAG &DAG) const {
   SDLoc DL(Op);
-  EVT Ty = Op.getValueType();
   GlobalAddressSDNode *N = cast<GlobalAddressSDNode>(Op);
   assert(N->getOffset() == 0 && "unexpected offset in global node");
-  MVT XLenVT = Subtarget.getXLenVT();
 
   TLSModel::Model Model = getTargetMachine().getTLSModel(N->getGlobal());