usb: gadget: pch_udc: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

drivers/usb/gadget/pch_udc.c

@@ -3080,7 +3080,6 @@ static void pch_udc_remove(struct pci_dev *pdev)
 	if (dev->active)
 		pci_disable_device(pdev);
 	kfree(dev);
-	pci_set_drvdata(pdev, NULL);
 }
 
 #ifdef CONFIG_PM