powerpc: platforms: pasemi: drop owner assignment from platform_drivers

A platform_driver does not need to set an owner, it will be populated by the
driver core.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

arch/powerpc/platforms/pasemi/gpio_mdio.c

@@ -305,7 +305,6 @@ static struct platform_driver gpio_mdio_driver =
 	.remove		= gpio_mdio_remove,
 	.driver = {
 		.name = "gpio-mdio-bitbang",
-		.owner = THIS_MODULE,
 		.of_match_table = gpio_mdio_match,
 	},
 };