sound: OSS: Remove superfluous pci_set_dvdata(pci, NULL)

Only kahlua.c has it.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

sound/oss/kahlua.c

@@ -178,7 +178,6 @@ static int probe_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	return 0;
 
 err_out_free:
-	pci_set_drvdata(pdev, NULL);
 	kfree(hw_config);
 	return 1;
 }
@@ -187,7 +186,6 @@ static void remove_one(struct pci_dev *pdev)
 {
 	struct address_info *hw_config = pci_get_drvdata(pdev);
 	sb_dsp_unload(hw_config, 0);
-	pci_set_drvdata(pdev, NULL);
 	kfree(hw_config);
 }