types/wlr_virtual_keyboard_v1: remove destroy event

The destroy event from the keyboard base wlr_input_device must be used

include/wlr/types/wlr_virtual_keyboard_v1.h

@@ -31,10 +31,6 @@ struct wlr_virtual_keyboard_v1 {
 	bool has_keymap;
 
 	struct wl_list link;
-
-	struct {
-		struct wl_signal destroy; // struct wlr_virtual_keyboard_v1*
-	} events;
 };
 
 struct wlr_virtual_keyboard_manager_v1* wlr_virtual_keyboard_manager_v1_create(

types/wlr_virtual_keyboard_v1.c

@@ -109,8 +109,6 @@ static void virtual_keyboard_destroy_resource(struct wl_resource *resource) {
 		return;
 	}
 
-	wlr_signal_emit_safe(&keyboard->events.destroy, keyboard);
-
 	wlr_keyboard_finish(&keyboard->keyboard);
 
 	wl_resource_set_user_data(keyboard->resource, NULL);
@@ -171,7 +169,6 @@ static void virtual_keyboard_manager_create_virtual_keyboard(
 
 	virtual_keyboard->resource = keyboard_resource;
 	virtual_keyboard->seat = seat_client->seat;
-	wl_signal_init(&virtual_keyboard->events.destroy);
 
 	wl_list_insert(&manager->virtual_keyboards, &virtual_keyboard->link);