ptp_ocp: do not call pci_set_drvdata(pdev, NULL)

Cleaning up driver data is actually already handled by driver core,
so there is no need to do it manually.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Vadim Fedorenko <vfedorenko@novek.ru>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/ptp/ptp_ocp.c

@@ -3772,7 +3772,6 @@ ptp_ocp_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 
 out:
 	ptp_ocp_detach(bp);
-	pci_set_drvdata(pdev, NULL);
 out_disable:
 	pci_disable_device(pdev);
 out_free:
@@ -3788,7 +3787,6 @@ ptp_ocp_remove(struct pci_dev *pdev)
 
 	devlink_unregister(devlink);
 	ptp_ocp_detach(bp);
-	pci_set_drvdata(pdev, NULL);
 	pci_disable_device(pdev);
 
 	devlink_free(devlink);