always hide when hide is called:

otherwise when zooming in the toolbox will stay in toolbar mode and be visible over the desktop (oh boy how much rhis needs to be scrapped)

svn path=/trunk/KDE/kdelibs/; revision=1065542

private/desktoptoolbox.cpp

@@ -748,10 +748,6 @@ void DesktopToolBox::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
 
 void DesktopToolBox::hideToolBox()
 {
-    if (!isShowing()) {
-        return;
-    }
-
     Plasma::Animator *animdriver = Plasma::Animator::self();
     foreach (QGraphicsItem *tool, QGraphicsItem::children()) {
         if (tool == d->toolBacker) {