Converted Observatory class-nav-menu element

runtime/observatory/lib/src/elements/nav_bar.dart

Index: runtime/observatory/lib/src/elements/nav_bar.dart
diff --git a/runtime/observatory/lib/src/elements/nav_bar.dart b/runtime/observatory/lib/src/elements/nav_bar.dart
index fa1eee69667edbc1255f6b5a26009ba972fc8421..2190d332dc30cb303efea5034709c77e9a08b8a5 100644
--- a/runtime/observatory/lib/src/elements/nav_bar.dart
+++ b/runtime/observatory/lib/src/elements/nav_bar.dart
@@ -61,14 +61,6 @@ class LibraryNavMenuElement extends ObservatoryElement {
   LibraryNavMenuElement.created() : super.created();
 }
 
-@CustomTag('class-nav-menu')
-class ClassNavMenuElement extends ObservatoryElement {
-  @published Class cls;
-  @published bool last = false;
-
-  ClassNavMenuElement.created() : super.created();
-}
-
 @CustomTag('nav-notify')
 class NavNotifyElement extends ObservatoryElement {
   @published ObservableList<Notification> notifications;