mtd: fsl-quadspi: Remove unneeded driver.bus assignment

platform_driver_register() takes care of assigning driver->bus
to &platform_bus_type, no need to explicitly assign it in the driver.
Signed-off-by: NBoris Brezillon <boris.brezillon@bootlin.com>
Acked-by: NHan Xu <han.xu@nxp.com>
Signed-off-by: NCyrille Pitchen <cyrille.pitchen@wedev4u.fr>

drivers/mtd/spi-nor/fsl-quadspi.c

@@ -1174,7 +1174,6 @@ static int fsl_qspi_resume(struct platform_device *pdev)
 static struct platform_driver fsl_qspi_driver = {
 	.driver = {
 		.name	= "fsl-quadspi",
-		.bus	= &platform_bus_type,
 		.of_match_table = fsl_qspi_dt_ids,
 	},
 	.probe          = fsl_qspi_probe,