watchdog: loongson1: Drop CONFIG_OF

The general recommendation is to not use of_match_ptr() or CONFIG_OF
ifdef.

Drop them.

Signed-off-by: Binbin Zhou <[e-mail]>
Reviewed-by: Guenter Roeck <[e-mail]>
Signed-off-by: Guenter Roeck <[e-mail]>
Signed-off-by: Wim Van Sebroeck <[e-mail]>

drivers/watchdog/loongson1_wdt.c

···
 	return devm_watchdog_register_device(dev, &drvdata->wdt);
 }
 
-#ifdef CONFIG_OF
 static const struct of_device_id ls1x_wdt_dt_ids[] = {
 	{ .compatible = "loongson,ls1b-wdt", },
 	{ .compatible = "loongson,ls1c-wdt", },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, ls1x_wdt_dt_ids);
-#endif
 
 static struct platform_driver ls1x_wdt_driver = {
 	.probe = ls1x_wdt_probe,
 	.driver = {
 		.name = "ls1x-wdt",
-		.of_match_table = of_match_ptr(ls1x_wdt_dt_ids),
+		.of_match_table = ls1x_wdt_dt_ids,
 	},
 };