[FunctionLoweringInfo] Remove unnecesary check for isVectorTy when isIntegerTy is true. NFC (llvm#171880)

isIntegerTy is only true for scalars.

Author: topperc

llvm/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp

@@ -442,7 +442,7 @@ FunctionLoweringInfo::GetLiveOutRegInfo(Register Reg, unsigned BitWidth) {
 /// register based on the LiveOutInfo of its operands.
 void FunctionLoweringInfo::ComputePHILiveOutRegInfo(const PHINode *PN) {
   Type *Ty = PN->getType();
-  if (!Ty->isIntegerTy() || Ty->isVectorTy())
+  if (!Ty->isIntegerTy())
     return;
 
   SmallVector<EVT, 1> ValueVTs;