[RISCV] Minor whitespace as a test change [nfc]

Author: preames

llvm/lib/Target/RISCV/RISCVISelLowering.cpp

@@ -20483,7 +20483,6 @@ RISCVTargetLowering::getTargetMMOFlags(const MemSDNode &Node) const {
   MachineMemOperand::Flags TargetFlags = MachineMemOperand::MONone;
   TargetFlags |= (NodeFlags & MONontemporalBit0);
   TargetFlags |= (NodeFlags & MONontemporalBit1);
-
   return TargetFlags;
 }