rtc: pcf8523: remove unecessary ifdefery

If CONFIG_OF is not defined, of_property_read_bool will return false which
is our default value

Signed-off-by: Alexandre Belloni <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

drivers/rtc/rtc-pcf8523.c

···
 		dev_pm_set_wake_irq(&client->dev, client->irq);
 	}
 
-#ifdef CONFIG_OF
 	wakeup_source = of_property_read_bool(client->dev.of_node, "wakeup-source");
-#endif
 	if (client->irq > 0 || wakeup_source)
 		device_init_wakeup(&client->dev, true);