xwayland: remove associate/dissociate listeners

Author: emersion

xwayland.c

@@ -153,6 +153,8 @@ handle_xwayland_surface_destroy(struct wl_listener *listener, void *data)
 	struct cg_xwayland_view *xwayland_view = wl_container_of(listener, xwayland_view, destroy);
 	struct cg_view *view = &xwayland_view->view;
 
+	wl_list_remove(&xwayland_view->associate.link);
+	wl_list_remove(&xwayland_view->dissociate.link);
 	wl_list_remove(&xwayland_view->destroy.link);
 	wl_list_remove(&xwayland_view->request_fullscreen.link);
 	xwayland_view->xwayland_surface = NULL;