xwayland: drop struct wlr_xwayland_move_event

This only contains the xsurface, which isn't particularly useful.

include/wlr/xwayland/xwayland.h

@@ -177,11 +177,6 @@ struct wlr_xwayland_surface_configure_event {
 	uint16_t mask; // xcb_config_window_t
 };
 
-// TODO: maybe add a seat to these
-struct wlr_xwayland_move_event {
-	struct wlr_xwayland_surface *surface;
-};
-
 struct wlr_xwayland_remove_startup_info_event  {
 	const char *id;
 	xcb_window_t window;

xwayland/xwm.c

@@ -1243,13 +1243,11 @@ static void xwm_handle_net_wm_moveresize_message(struct wlr_xwm *xwm,
 	// TODO: we should probably add input or seat info to this but we would just
 	// be guessing
 	struct wlr_xwayland_resize_event resize_event;
-	struct wlr_xwayland_move_event move_event;
 
 	int detail = ev->data.data32[2];
 	switch (detail) {
 	case _NET_WM_MOVERESIZE_MOVE:
-		move_event.surface = xsurface;
+		wl_signal_emit_mutable(&xsurface->events.request_move, NULL);
-		wl_signal_emit_mutable(&xsurface->events.request_move, &move_event);
 		break;
 	case _NET_WM_MOVERESIZE_SIZE_TOPLEFT:
 	case _NET_WM_MOVERESIZE_SIZE_TOP: