ns87415: small ->init_hwif cleanup

Core IDE PCI code takes care of assigning hwif->irq for both ports.

There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

drivers/ide/ns87415.c

@@ -287,8 +287,6 @@ static void __devinit init_hwif_ns87415 (ide_hwif_t *hwif)
 
 	if (!using_inta)
 		hwif->irq = pci_get_legacy_ide_irq(dev, hwif->channel);
-	else if (!hwif->irq && hwif->mate && hwif->mate->irq)
-		hwif->irq = hwif->mate->irq;	/* share IRQ with mate */
 
 	if (!hwif->dma_base)
 		return;