scsi: 3w-xxx: Remove redundant initialization of variable retval

The variable retval is being initialized with a value that is never read,
it is being updated immediately afterwards. The assignment is redundant and
can be removed.

Link: https://lore.kernel.org/r/20211013182834.137410-1-colin.king@canonical.comSigned-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Addresses-Coverity: ("Unused value")

drivers/scsi/3w-xxxx.c

@@ -2252,7 +2252,7 @@ static int tw_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
 {
 	struct Scsi_Host *host = NULL;
 	TW_Device_Extension *tw_dev;
-	int retval = -ENODEV;
+	int retval;
 
 	retval = pci_enable_device(pdev);
 	if (retval) {