Remove unused typedef as pointed out by a GCC warning.

Yay for auto.

llvm-svn: 203912

clang/lib/ASTMatchers/ASTMatchFinder.cpp

@@ -664,7 +664,6 @@ bool MatchASTVisitor::classIsDerivedFrom(const CXXRecordDecl *Declaration,
                                          BoundNodesTreeBuilder *Builder) {
   if (!Declaration->hasDefinition())
     return false;
-  typedef CXXRecordDecl::base_class_const_iterator BaseIterator;
   for (const auto &It : Declaration->bases()) {
     const Type *TypeNode = It.getType().getTypePtr();