Fix a warning introduced by r227557 due to a default label in a fully

covering switch.

llvm-svn: 227575

llvm/lib/Transforms/Vectorize/LoopVectorize.cpp

@@ -744,7 +744,6 @@ public:
         return B.CreateGEP(StartValue, Index);
 
       case IK_NoInduction:
-      default:
         return nullptr;
       }
     }