ide: remove ide_init_default_irq() macro

* Use ide_default_irq() instead of ide_init_default_irq() in
  ide_generic host driver (so the correct IRQ is always set
  regardless of CONFIG_PCI / CONFIG_BLK_DEV_IDEPCI).

* Remove no longer needed ide_init_default_irq() macro.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ide-generic.c b/drivers/ide/ide-generic.c
index 4f996d0..25fda0a 100644
--- a/drivers/ide/ide-generic.c
+++ b/drivers/ide/ide-generic.c
@@ -97,7 +97,7 @@
 		if (hwif->chipset == ide_unknown && io_addr) {
 			memset(&hw, 0, sizeof(hw));
 			ide_std_init_ports(&hw, io_addr, io_addr + 0x206);
-			hw.irq = ide_init_default_irq(io_addr);
+			hw.irq = ide_default_irq(io_addr);
 			ide_init_port_hw(hwif, &hw);
 
 			idx[i] = i;