gpio: xgene: Remove unneeded #ifdef CONFIG_OF guard

This driver depends on OF_GPIO, so it won't be built if !CONFIG_OF.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/gpio/gpio-xgene.c

@@ -220,13 +220,11 @@ static int xgene_gpio_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_OF
 static const struct of_device_id xgene_gpio_of_match[] = {
 	{ .compatible = "apm,xgene-gpio", },
 	{},
 };
 MODULE_DEVICE_TABLE(of, xgene_gpio_of_match);
-#endif
 
 static struct platform_driver xgene_gpio_driver = {
 	.driver = {