uio/uio_pci_generic: remove unneeded pci_set_drvdata()

The pci_get_drvdata() was moved during commit ef84928cff
("uio/uio_pci_generic: use device-managed function equivalents").

Storing a private object with pci_set_drvdata() doesn't make sense
since that change, since there is no more pci_get_drvdata() call in the
driver to retrieve the information.

This change removes it.

Fixes: ef84928cff ("uio/uio_pci_generic: use device-managed function equivalents")
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20201123143447.16829-1-alexandru.ardelean@analog.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/uio/uio_pci_generic.c

@@ -101,13 +101,7 @@ static int probe(struct pci_dev *pdev,
 			 "no support for interrupts?\n");
 	}
 
-	err = devm_uio_register_device(&pdev->dev, &gdev->info);
-	if (err)
-		return err;
-
-	pci_set_drvdata(pdev, gdev);
-
-	return 0;
+	return devm_uio_register_device(&pdev->dev, &gdev->info);
 }
 
 static struct pci_driver uio_pci_driver = {