gpu: drm: rcar-du: 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>

drivers/gpu/drm/rcar-du/rcar_du_drv.c

@@ -330,7 +330,6 @@ static struct platform_driver rcar_du_platform_driver = {
 	.probe		= rcar_du_probe,
 	.remove		= rcar_du_remove,
 	.driver		= {
-		.owner	= THIS_MODULE,
 		.name	= "rcar-du",
 		.pm	= &rcar_du_pm_ops,
 		.of_match_table = rcar_du_of_table,