USB: Simplify USB ID table match

usb_device_match_id() supports being passed NULL tables, so no need to
check for it.

Signed-off-by: Bastien Nocera <hadess@hadess.net>
Link: https://lore.kernel.org/r/20200727104644.149873-1-hadess@hadess.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/core/generic.c

@@ -205,8 +205,6 @@ static int __check_usb_generic(struct device_driver *drv, void *data)
 	udrv = to_usb_device_driver(drv);
 	if (udrv == &usb_generic_driver)
 		return 0;
-	if (!udrv->id_table)
-		return 0;
 
 	return usb_device_match_id(udev, udrv->id_table) != NULL;
 }