public static void removeListener( SessionListener listener )
    {
        listeners.remove( listener );
    }
Removes a {@link org.jivesoftware.openfire.http.SessionListener} from this session. The
listener will no longer be updated when an event occurs on the session.

@param listener the session listener that is to be removed.
xmppserver/src/main/java/org/jivesoftware/openfire/http/SessionEventDispatcher.java