Remove deleted views from the list

Change-Id: Ic4c998347e14c17693bea461452d6ee8fc41064b
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>

src/compositor/compositor_api/qwaylandsurfaceview.cpp

@@ -64,8 +64,10 @@ QWaylandSurfaceView::QWaylandSurfaceView(QWaylandSurface *surf)
 
 QWaylandSurfaceView::~QWaylandSurfaceView()
 {
-    if (d->surface)
+    if (d->surface) {
         d->surface->destroy();
+        d->surface->d_func()->views.removeOne(this);
+    }
     delete d;
 }