Remove unused field.

llvm-svn: 182874

clang/include/clang/AST/ASTContext.h

@@ -2218,9 +2218,6 @@ private:
   // but we include it here so that ASTContext can quickly deallocate them.
   llvm::PointerIntPair<StoredDeclsMap*,1> LastSDM;
 
-  /// \brief A counter used to uniquely identify "blocks".
-  mutable unsigned int UniqueBlockByRefTypeID;
-  
   friend class DeclContext;
   friend class DeclarationNameTable;
   void ReleaseDeclContextMaps();

clang/lib/AST/ASTContext.cpp

@@ -716,8 +716,7 @@ ASTContext::ASTContext(LangOptions& LOpts, SourceManager &SM,
     ExternalSource(0), Listener(0),
     Comments(SM), CommentsLoaded(false),
     CommentCommandTraits(BumpAlloc, LOpts.CommentOpts),
-    LastSDM(0, 0),
-    UniqueBlockByRefTypeID(0)
+    LastSDM(0, 0)
 {
   if (size_reserve > 0) Types.reserve(size_reserve);
   TUDecl = TranslationUnitDecl::Create(*this);