tty: serial: 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/tty/serial/mpsc.c

@@ -2111,7 +2111,6 @@ static struct platform_driver mpsc_driver = {
 	.remove	= mpsc_drv_remove,
 	.driver	= {
 		.name	= MPSC_CTLR_NAME,
-		.owner	= THIS_MODULE,
 	},
 };