sata_nv: remove redundant pointers sdev0 and sdev1

Pointers sdev0 and sdev1 are being assigned but are never used hence they
are redundant and can be removed.

Cleans up clang warnings:
warning: variable 'sdev0' set but not used [-Wunused-but-set-variable]
warning: variable 'sdev1' set but not used [-Wunused-but-set-variable]
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

drivers/ata/sata_nv.c

@@ -675,7 +675,6 @@ static int nv_adma_slave_config(struct scsi_device *sdev)
 	struct ata_port *ap = ata_shost_to_port(sdev->host);
 	struct nv_adma_port_priv *pp = ap->private_data;
 	struct nv_adma_port_priv *port0, *port1;
-	struct scsi_device *sdev0, *sdev1;
 	struct pci_dev *pdev = to_pci_dev(ap->host->dev);
 	unsigned long segment_boundary, flags;
 	unsigned short sg_tablesize;
@@ -736,8 +735,6 @@ static int nv_adma_slave_config(struct scsi_device *sdev)
 
 	port0 = ap->host->ports[0]->private_data;
 	port1 = ap->host->ports[1]->private_data;
-	sdev0 = ap->host->ports[0]->link.device[0].sdev;
-	sdev1 = ap->host->ports[1]->link.device[0].sdev;
 	if ((port0->flags & NV_ADMA_ATAPI_SETUP_COMPLETE) ||
 	    (port1->flags & NV_ADMA_ATAPI_SETUP_COMPLETE)) {
 		/*