ide: remove needless hwif->irq check from ide_hwif_configure()

ide_init_default_irq() is always zero for CONFIG_PCI=y so hwif->irq
check in ide_hwif_configure() can be safely removed.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c
index ea66c99..ee4a34b49 100644
--- a/drivers/ide/setup-pci.c
+++ b/drivers/ide/setup-pci.c
@@ -371,7 +371,7 @@
 		return NULL;	/* no room in ide_hwifs[] */
 
 	memset(&hw, 0, sizeof(hw));
-	hw.irq = hwif->irq ? hwif->irq : irq;
+	hw.irq = irq;
 	hw.dev = &dev->dev;
 	hw.chipset = d->chipset ? d->chipset : ide_pci;
 	ide_std_init_ports(&hw, base, ctl | 2);