md: remove typedefs: mirror_info_t -> struct mirror_info

Signed-off-by: NeilBrown <neilb@suse.de>
diff --git a/drivers/md/raid1.h b/drivers/md/raid1.h
index d59e467..dd5e66a 100644
--- a/drivers/md/raid1.h
+++ b/drivers/md/raid1.h
@@ -1,8 +1,6 @@
 #ifndef _RAID1_H
 #define _RAID1_H
 
-typedef struct mirror_info mirror_info_t;
-
 struct mirror_info {
 	struct md_rdev	*rdev;
 	sector_t	head_position;
@@ -23,7 +21,7 @@
 
 struct r1_private_data_s {
 	struct mddev		*mddev;
-	mirror_info_t		*mirrors;
+	struct mirror_info		*mirrors;
 	int			raid_disks;
 
 	/* When choose the best device for a read (read_balance())