input-device: drop wlr_input_device.{vendor,product}

These aren't super useful without the bus type. Compositors can
fish back this information from the libinput device if they want to.

Closes: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3818

backend/libinput/keyboard.c

@@ -26,8 +26,6 @@ void init_device_keyboard(struct wlr_libinput_input_device *dev) {
 	const char *name = get_libinput_device_name(dev->handle);
 	struct wlr_keyboard *wlr_kb = &dev->keyboard;
 	wlr_keyboard_init(wlr_kb, &libinput_keyboard_impl, name);
-	wlr_kb->base.vendor = libinput_device_get_id_vendor(dev->handle);
-	wlr_kb->base.product = libinput_device_get_id_product(dev->handle);
 
 	libinput_device_led_update(dev->handle, 0);
 }

backend/libinput/pointer.c

@@ -11,8 +11,6 @@ void init_device_pointer(struct wlr_libinput_input_device *dev) {
 	const char *name = get_libinput_device_name(dev->handle);
 	struct wlr_pointer *wlr_pointer = &dev->pointer;
 	wlr_pointer_init(wlr_pointer, &libinput_pointer_impl, name);
-	wlr_pointer->base.vendor = libinput_device_get_id_vendor(dev->handle);
-	wlr_pointer->base.product = libinput_device_get_id_product(dev->handle);
 }
 
 struct wlr_libinput_input_device *device_from_pointer(

backend/libinput/switch.c

@@ -11,8 +11,6 @@ void init_device_switch(struct wlr_libinput_input_device *dev) {
 	const char *name = get_libinput_device_name(dev->handle);
 	struct wlr_switch *wlr_switch = &dev->switch_device;
 	wlr_switch_init(wlr_switch, &libinput_switch_impl, name);
-	wlr_switch->base.vendor = libinput_device_get_id_vendor(dev->handle);
-	wlr_switch->base.product = libinput_device_get_id_product(dev->handle);
 }
 
 struct wlr_libinput_input_device *device_from_switch(

backend/libinput/tablet_pad.c

@@ -93,8 +93,6 @@ void init_device_tablet_pad(struct wlr_libinput_input_device *dev) {
 	const char *name = get_libinput_device_name(handle);
 	struct wlr_tablet_pad *wlr_tablet_pad = &dev->tablet_pad;
 	wlr_tablet_pad_init(wlr_tablet_pad, &libinput_tablet_pad_impl, name);
-	wlr_tablet_pad->base.vendor = libinput_device_get_id_vendor(handle);
-	wlr_tablet_pad->base.product = libinput_device_get_id_product(handle);
 
 	wlr_tablet_pad->button_count =
 		libinput_device_tablet_pad_get_num_buttons(handle);

backend/libinput/tablet_tool.c

@@ -20,8 +20,6 @@ void init_device_tablet(struct wlr_libinput_input_device *dev) {
 	const char *name = get_libinput_device_name(dev->handle);
 	struct wlr_tablet *wlr_tablet = &dev->tablet;
 	wlr_tablet_init(wlr_tablet, &libinput_tablet_impl, name);
-	wlr_tablet->base.vendor = libinput_device_get_id_vendor(dev->handle);
-	wlr_tablet->base.product = libinput_device_get_id_product(dev->handle);
 	wlr_tablet->usb_vendor_id = libinput_device_get_id_vendor(dev->handle);
 	wlr_tablet->usb_product_id = libinput_device_get_id_product(dev->handle);
 

backend/libinput/touch.c

@@ -11,8 +11,6 @@ void init_device_touch(struct wlr_libinput_input_device *dev) {
 	const char *name = get_libinput_device_name(dev->handle);
 	struct wlr_touch *wlr_touch = &dev->touch;
 	wlr_touch_init(wlr_touch, &libinput_touch_impl, name);
-	wlr_touch->base.vendor = libinput_device_get_id_vendor(dev->handle);
-	wlr_touch->base.product = libinput_device_get_id_product(dev->handle);
 
 	libinput_device_get_size(dev->handle, &wlr_touch->width_mm,
 		&wlr_touch->height_mm);

backend/wayland/tablet_v2.c

@@ -813,8 +813,6 @@ static void handle_tablet_id(void *data, struct zwp_tablet_v2 *zwp_tablet_v2,
 	struct wlr_wl_seat *seat = data;
 	struct wlr_tablet *tablet = &seat->wlr_tablet;
 
-	tablet->base.vendor = vid;
-	tablet->base.product = pid;
 	tablet->usb_vendor_id = vid;
 	tablet->usb_product_id = pid;
 }

include/wlr/types/wlr_input_device.h

@@ -36,12 +36,9 @@ enum wlr_input_device_type {
  *
  * Input devices are typically advertised by the new_input event in
  * struct wlr_backend.
- *
- * The vendor/product are bus-specific identifiers.
  */
 struct wlr_input_device {
 	enum wlr_input_device_type type;
-	unsigned int vendor, product;
 	char *name; // may be NULL
 
 	struct {