output: don't send make/model

- These are legacy wl_output properties [1]
- wl_output exposes name and description, which are better defined
- It's not clear what make/model/serial are for a virtual output
- Clients shouldn't rely on these fields

[1]: 8f1795f911/protocol/wayland.xml (L2508)

Closes: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/1623

types/output/output.c

@@ -16,20 +16,9 @@
 
 static void send_geometry(struct wl_resource *resource) {
 	struct wlr_output *output = wlr_output_from_resource(resource);
-
-	const char *make = output->make;
-	if (make == NULL) {
-		make = "Unknown";
-	}
-
-	const char *model = output->model;
-	if (model == NULL) {
-		model = "Unknown";
-	}
-
 	wl_output_send_geometry(resource, 0, 0,
 		output->phys_width, output->phys_height, output->subpixel,
-		make, model, output->transform);
+		"Unknown", "Unknown", output->transform);
 }
 
 static void send_current_mode(struct wl_resource *resource) {