* test/test_gdk_display.rb   (TestGdkDisplay#test_startup_notification_id): remove   needless test.
* test/test_gdk_display.rb
  (TestGdkDisplay#test_startup_notification_id): remove
  needless test.


benolee/ruby-gnome2,benolee/ruby-gnome2,benolee/ruby-gnome2