Remove unnecessary explicit typing in std::make_pair

Contributed-by: Yabin Hu <yabin.hwu@gmail.com>
llvm-svn: 208181
diff --git a/polly/lib/CodeGen/CodeGeneration.cpp b/polly/lib/CodeGen/CodeGeneration.cpp
index c265bbc..37d9801 100644
--- a/polly/lib/CodeGen/CodeGeneration.cpp
+++ b/polly/lib/CodeGen/CodeGeneration.cpp
@@ -785,7 +785,7 @@
                     CmpInst::ICMP_SLE);
     const Value *OldIV_ = Statement->getInductionVariableForDimension(2);
     Value *OldIV = const_cast<Value *>(OldIV_);
-    VMap.insert(std::make_pair<Value *, Value *>(OldIV, IV));
+    VMap.insert(std::make_pair(OldIV, IV));
   }
 
   updateWithValueMap(VMap);