Revert "pata_atiixp: Don't use unconnected secondary port on SB600/SB700"

This reverts commit 5946fdaee4ba449e8fbb5d403e1ed69437f916e8.

The original commit's assumption that the secondary port is
unconnected turns out to be false.

Signed-off-by: Tejun Heo <[e-mail]>
Reported-by: Markku Pesonen <[e-mail]>
Fixes: 5946fdaee4ba ("pata_atiixp: Don't use unconnected secondary port on SB600/SB700")
Cc: Darren Stevens <[e-mail]>

drivers/ata/pata_atiixp.c

···
 	};
 	const struct ata_port_info *ppi[] = { &info, &info };
 
-	/* SB600/700 don't have secondary port wired */
-	if ((pdev->device == PCI_DEVICE_ID_ATI_IXP600_IDE) ||
-		(pdev->device == PCI_DEVICE_ID_ATI_IXP700_IDE))
-		ppi[1] = &ata_dummy_port_info;
-
 	return ata_pci_bmdma_init_one(pdev, ppi, &atiixp_sht, NULL,
 				      ATA_HOST_PARALLEL_SCAN);
 }