Update window flags from QToolBarPrivate::endDrag().

Activate previously #ifdef'ed code which cleared
the Qt::X11BypassWindowManager hint. With the hint
set, the tool bar stays on top and does not get deactivated
along with the application by the WM.

Task-number: QTBUG-41189
Change-Id: I6f3f334860e46dd4867f5942f15e5a090340f2d7
Reviewed-by: Andy Shaw <andy.shaw@digia.com>

src/widgets/widgets/qtoolbar.cpp

@@ -220,10 +220,8 @@ void QToolBarPrivate::endDrag()
         if (!layout->plug(state->widgetItem)) {
             if (q->isFloatable()) {
                 layout->restore();
-#if defined(Q_WS_X11) || defined(Q_WS_MAC)
                 setWindowState(true); // gets rid of the X11BypassWindowManager window flag
                                       // and activates the resizer
-#endif
                 q->activateWindow();
             } else {
                 layout->revert(state->widgetItem);