[CodeGen] Remove special case of printing subRegIdx from MachineInstr…

…::print

Support in MachineOperand has been added in r320209. No need to special
case this anymore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@322542 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/MachineInstr.cpp

@@ -1332,9 +1332,6 @@ void MachineInstr::print(raw_ostream &OS, ModuleSlotTracker &MST,
         MO.print(OS, MST, TypeToPrint, /*PrintDef=*/true,
                  ShouldPrintRegisterTies, TiedOperandIdx, TRI, IntrinsicInfo);
       }
-    } else if (TRI && (isInsertSubreg() || isRegSequence() ||
-                       (isSubregToReg() && i == 3)) && MO.isImm()) {
-      OS << TRI->getSubRegIndexName(MO.getImm());
     } else if (i == AsmDescOp && MO.isImm()) {
       // Pretty print the inline asm operand descriptor.
       OS << '$' << AsmOpCount++;