compositor: Remove the edges parameter from send_configure

send_configure was originally modelled after
wl_shell_surface::send_configure, which takes these arguments. However,
the X WM and xdg_surface::configure variants don't use these arguments.

We already store the resize edges for a surface while it's being
resized, so just use the saved state in the wl_shell_surface variant.

xwayland/window-manager.c

@@ -2175,8 +2175,7 @@ weston_wm_window_configure(void *data)
 }
 
 static void
-send_configure(struct weston_surface *surface,
-	       uint32_t edges, int32_t width, int32_t height)
+send_configure(struct weston_surface *surface, int32_t width, int32_t height)
 {
 	struct weston_wm_window *window = get_wm_window(surface);
 	struct weston_wm *wm = window->wm;