ide: remove redundant hwif->present check from ide_register_hw()

We check earlier for hwif->present and call ide_unregister() if necessary
(after ide_unregister() hwif->present will be always cleared).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

drivers/ide/ide.c

@@ -720,8 +720,6 @@ int ide_register_hw(hw_regs_t *hw, void (*quirkproc)(ide_drive_t *),
 		ide_init_port_data(hwif, index);
 		init_hwif_default(hwif, index);
 	}
-	if (hwif->present)
-		return -1;
 
 	ide_init_port_hw(hwif, hw);
 	hwif->quirkproc = quirkproc;