This panel was hidden in the new shell, and now that we don't have the old one, can be safely dropped. Minor adjustments were made to the other panels to properly remove this panel. https://bugzilla.gnome.org/show_bug.cgi?id=790923
This is required for adding these subpanels as panels for the new g-c-c shell design. https://bugzilla.gnome.org/show_bug.cgi?id=779216
https://bugzilla.gnome.org/show_bug.cgi?id=779216