Remove BlockingQueuedConnection, hopefully not needed

modules/gui/qt4/components/interface_widgets.cpp

@@ -73,13 +73,8 @@ VideoWidget::VideoWidget( intf_thread_t *_p_i ) : QFrame( NULL ), p_intf( _p_i )
     setPalette( plt );
     setAttribute( Qt::WA_PaintOnScreen, true );
 
-    /* The core can ask through a callback to show the video.
-     * NOTE: We need to block the video output core until the window handle
-     * is ready for use (otherwise an X11 invalid handle failure may occur).
-     * As a side effect, it is illegal to emit askVideoWidgetToShow from
-     * the same thread as the Qt4 thread that owns this. */
-    QObject::connect( this, SIGNAL(askVideoWidgetToShow()), this, SLOT(show()),
-                      Qt::BlockingQueuedConnection );
+    /* The core can ask through a callback to show the video. */
+    CONNECT( this, askVideoWidgetToShow(), this, show() );
 
     /* The core can ask through a callback to resize the video */
    // CONNECT( this, askResize( int, int ), this, SetSizing( int, int ) );