Remove odd use of this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192004 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h
index 7928d3f..8459f77 100644
--- a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h
+++ b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h
@@ -166,7 +166,7 @@
 
   /// addDie - Adds or interns the DIE to the compile unit.
   ///
-  void addDie(DIE *Buffer) { this->CUDie->addChild(Buffer); }
+  void addDie(DIE *Buffer) { CUDie->addChild(Buffer); }
 
   // getIndexTyDie - Get an anonymous type for index type.
   DIE *getIndexTyDie() { return IndexTyDie; }