Remove unnecessary temporary.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156953 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGDebugInfo.cpp b/lib/CodeGen/CGDebugInfo.cpp
index 2d76f9b..57d8108 100644
--- a/lib/CodeGen/CGDebugInfo.cpp
+++ b/lib/CodeGen/CGDebugInfo.cpp
@@ -688,9 +688,7 @@
   }
 
   llvm::DIArray EltTypeArray = DBuilder.getOrCreateArray(EltTys);
-
-  llvm::DIType DbgTy = DBuilder.createSubroutineType(Unit, EltTypeArray);
-  return DbgTy;
+  return DBuilder.createSubroutineType(Unit, EltTypeArray);
 }