hpt366: fix compile warning

Fixup for commit 1785192b
("hpt366: add hpt3xx_disable_fast_irq() helper"):

   CC      drivers/ide/pci/hpt366.o
drivers/ide/pci/hpt366.c: In function `init_hwif_hpt366':
drivers/ide/pci/hpt366.c:1290: warning: unused variable `dev'
Reported-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Acked-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

drivers/ide/pci/hpt366.c

@@ -1289,7 +1289,6 @@ static u8 hpt3xx_cable_detect(ide_hwif_t *hwif)
 
 static void __devinit init_hwif_hpt366(ide_hwif_t *hwif)
 {
-	struct pci_dev *dev	= to_pci_dev(hwif->dev);
 	struct hpt_info *info	= hpt3xx_get_info(hwif->dev);
 	int serialize		= HPT_SERIALIZE_IO;
 	u8  chip_type		= info->chip_type;