Remove unused typedef.


git-svn-id: http://skia.googlecode.com/svn/trunk/src@10801 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gpu/GrRedBlackTree.h b/gpu/GrRedBlackTree.h
index ddee195..d9f2d76 100644
--- a/gpu/GrRedBlackTree.h
+++ b/gpu/GrRedBlackTree.h
@@ -948,7 +948,6 @@
 template <typename T, typename C>
 void GrRedBlackTree<T,C>::UnitTest() {
     GrRedBlackTree<int> tree;
-    typedef GrRedBlackTree<int>::Iter iter;
 
     SkMWCRandom r;