ide: remove dead code from ide_driveid_update()

* Remove dead code from ide_driveid_update().

While at it:

* Remove useless comment.

* s/HWIF(drive)/drive->hwif/

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

drivers/ide/ide-iops.c

@@ -693,35 +693,16 @@ static u8 ide_auto_reduce_xfer (ide_drive_t *drive)
 }
 #endif /* CONFIG_BLK_DEV_IDEDMA */
 
-/*
- * Update the 
- */
-int ide_driveid_update (ide_drive_t *drive)
+int ide_driveid_update(ide_drive_t *drive)
 {
-	ide_hwif_t *hwif	= HWIF(drive);
+	ide_hwif_t *hwif = drive->hwif;
 	struct hd_driveid *id;
-#if 0
-	id = kmalloc(SECTOR_WORDS*4, GFP_ATOMIC);
-	if (!id)
-		return 0;
-
-	taskfile_lib_get_identify(drive, (char *)&id);
+	unsigned long timeout, flags;
 
-	ide_fix_driveid(id);
-	if (id) {
-		drive->id->dma_ultra = id->dma_ultra;
-		drive->id->dma_mword = id->dma_mword;
-		drive->id->dma_1word = id->dma_1word;
-		/* anything more ? */
-		kfree(id);
-	}
-	return 1;
-#else
 	/*
 	 * Re-read drive->id for possible DMA mode
 	 * change (copied from ide-probe.c)
 	 */
-	unsigned long timeout, flags;
 
 	SELECT_MASK(drive, 1);
 	if (IDE_CONTROL_REG)
@@ -763,7 +744,6 @@ int ide_driveid_update (ide_drive_t *drive)
 	}
 
 	return 1;
-#endif
 }
 
 int ide_config_drive_speed(ide_drive_t *drive, u8 speed)