NFC: remove unused variable

D55768 removed its use.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@349377 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/lib/CodeGen/SelectionDAG/TargetLowering.cpp
index 0c9ef5b..8ac1a96 100644
--- a/lib/CodeGen/SelectionDAG/TargetLowering.cpp
+++ b/lib/CodeGen/SelectionDAG/TargetLowering.cpp
@@ -1976,7 +1976,6 @@
           Op.getOpcode() == ISD::INTRINSIC_VOID) &&
          "Should use SimplifyDemandedBits if you don't know whether Op"
          " is a target node!");
-  EVT VT = Op.getValueType();
   computeKnownBitsForTargetNode(Op, Known, DemandedElts, TLO.DAG, Depth);
   return false;
 }