Zap a copy/paste-o bit of dead code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118926 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMInstrInfo.td b/lib/Target/ARM/ARMInstrInfo.td
index 916afee..6926bf0 100644
--- a/lib/Target/ARM/ARMInstrInfo.td
+++ b/lib/Target/ARM/ARMInstrInfo.td
@@ -2368,7 +2368,6 @@
                   IIC_iMVNsr, "mvn", "\t$Rd, $shift",
                   [(set GPR:$Rd, (not so_reg:$shift))]>, UnaryDP {
   bits<4> Rd;
-  bits<4> Rm;
   bits<12> shift;
   let Inst{25} = 0;
   let Inst{19-16} = 0b0000;
@@ -2380,7 +2379,6 @@
                   IIC_iMVNi, "mvn", "\t$Rd, $imm",
                   [(set GPR:$Rd, so_imm_not:$imm)]>,UnaryDP {
   bits<4> Rd;
-  bits<4> Rm;
   bits<12> imm;
   let Inst{25} = 1;
   let Inst{19-16} = 0b0000;