ide: remove SECTOR_WORDS define

Just use SECTOR_SIZE instead.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index ee44878..6256c2d 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -693,7 +693,7 @@
 	}
 	local_irq_save(flags);
 	SELECT_MASK(drive, 0);
-	id = kmalloc(SECTOR_WORDS*4, GFP_ATOMIC);
+	id = kmalloc(SECTOR_SIZE, GFP_ATOMIC);
 	if (!id) {
 		local_irq_restore(flags);
 		return 0;