verity: remove verify_mode

dm-bht.h

Index: dm-bht.h
diff --git a/dm-bht.h b/dm-bht.h
index 25c20b51778f1ca4a1abc8016fab80c65552265b..a6528d30ee22e1891ccaf03f04650fbbd4d8ef83 100644
--- a/dm-bht.h
+++ b/dm-bht.h
@@ -83,14 +83,12 @@ typedef int(*dm_bht_callback)(void *,  /* external context */
  * TODO(wad): All hash storage memory is pre-allocated and freed once an
  * entire branch has been verified.
  */
-enum verify_mode { DM_BHT_REVERIFY_LEAVES = 0, DM_BHT_FULL_REVERIFY };
 struct dm_bht {
 	/* Configured values */
 	/* ENFORCE: depth must be >= 2. */
 	unsigned int depth;  /* Depth of the tree including the root */
 	unsigned int block_count;  /* Number of blocks hashed */
 	char hash_alg[CRYPTO_MAX_ALG_NAME];
-	int verify_mode;  /* different verification modes */
 	unsigned int entry_readahead;  /* number of entries to attempt to
 					* pre-read in a level.
 					*/
@@ -127,7 +125,6 @@ void dm_bht_set_entry_readahead(struct dm_bht *bht,
 				unsigned int readahead_count);
 void dm_bht_set_read_cb(struct dm_bht *bht, dm_bht_callback read_cb);
 void dm_bht_set_write_cb(struct dm_bht *bht, dm_bht_callback write_cb);
-void dm_bht_set_verify_mode(struct dm_bht *bht, int verify_mode);
 int dm_bht_set_root_hexdigest(struct dm_bht *bht, const u8 *hexdigest);
 int dm_bht_root_hexdigest(struct dm_bht *bht, u8 *hexdigest, int available);