Remove other isDFPImm check

Author: arsenm

llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUInstPrinter.cpp

@@ -874,7 +874,7 @@ void AMDGPUInstPrinter::printOperandAndFPInputMods(const MCInst *MI,
     if (OpNo + 1 < MI->getNumOperands() &&
         (InputModifiers & SISrcMods::ABS) == 0) {
       const MCOperand &Op = MI->getOperand(OpNo + 1);
-      NegMnemo = Op.isImm() || Op.isDFPImm();
+      NegMnemo = Op.isImm();
     }
     if (NegMnemo) {
       O << "neg(";