Revert "[RISCV] Use setcc's original SDLoc when inverting it in performSUBCombine."

This reverts commit 1380b21.

I mixed up N0 and N1 and didn't do what I intended.

Author: topperc

llvm/lib/Target/RISCV/RISCVISelLowering.cpp

@@ -8298,7 +8298,7 @@ static SDValue performSUBCombine(SDNode *N, SelectionDAG &DAG) {
       // and may increase the number of constants we need.
       if (ImmValMinus1.isSignedIntN(12)) {
         CCVal = ISD::getSetCCInverse(CCVal, SetCCOpVT);
-        SDValue NewN0 = DAG.getSetCC(SDLoc(N0), VT, N1.getOperand(0),
+        SDValue NewN0 = DAG.getSetCC(SDLoc(N), VT, N1.getOperand(0),
                                      N1.getOperand(1), CCVal);
         SDValue NewN1 = DAG.getConstant(ImmValMinus1, SDLoc(N), VT);
         return DAG.getNode(ISD::ADD, SDLoc(N), VT, NewN0, NewN1);