don't handle wheel events in the event filter, let any widget that wants to steal it do so

seems to have a more natural behaviour

svn path=/trunk/KDE/kdelibs/; revision=1212343

widgets/scrollwidget.cpp

@@ -1500,9 +1500,7 @@ bool ScrollWidget::sceneEventFilter(QGraphicsItem *i, QEvent *e)
     case QEvent::GraphicsSceneMouseRelease:
         d->handleMouseReleaseEvent(static_cast<QGraphicsSceneMouseEvent*>(e));
         break;
-    case QEvent::GraphicsSceneWheel:
-        d->handleWheelEvent(static_cast<QGraphicsSceneWheelEvent*>(e));
-        break;
+
     //Multitouch related events, we actually need only TouchUpdate
     case QEvent::TouchUpdate: {
         QList<QTouchEvent::TouchPoint> touchPoints = static_cast<QTouchEvent *>(e)->touchPoints();