If you have bound some JNDI context and you decide
to remove it, you just invoke "Disconnect Context"
popup menu action.

If you have bound some broken JNDI context
(context marked by red 'x') and you decide to
remove it, you need to invoke "Delete" popup menu
action and confirm object deletion in appeared dialog.

I think these behaviours should be unified because
at least both context types are equally important.
Moreover I think valid context is more important -
so behaviours should be exchanged.