staging: remove unneeded static set .owner field in platform_driver

platform_driver_register will set the .owner field. So it is safe
to remove the redundant assignment.

The issue is detected with the help of Coccinelle.
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Acked-by: Vaibhav Agarwal <vaibhav.sr@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/greybus/audio_codec.c

@@ -1087,7 +1087,6 @@ static const struct of_device_id greybus_asoc_machine_of_match[]  = {
 static struct platform_driver gbaudio_codec_driver = {
 	.driver = {
 		.name = "apb-dummy-codec",
-		.owner = THIS_MODULE,
 #ifdef CONFIG_PM
 		.pm = &gbaudio_codec_pm_ops,
 #endif

drivers/staging/mt7621-eth/gsw_mt7621.c

@@ -286,7 +286,6 @@ static struct platform_driver gsw_driver = {
 	.remove = mt7621_gsw_remove,
 	.driver = {
 		.name = "mt7621-gsw",
-		.owner = THIS_MODULE,
 		.of_match_table = mediatek_gsw_match,
 	},
 };

drivers/staging/mt7621-eth/mtk_eth_soc.c

@@ -2167,7 +2167,6 @@ static struct platform_driver mtk_driver = {
 	.remove = mtk_remove,
 	.driver = {
 		.name = "mtk_soc_eth",
-		.owner = THIS_MODULE,
 		.of_match_table = of_mtk_match,
 	},
 };