Btrfs: cleanup unused run_most

"run_most" is not used anymore.
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>

fs/btrfs/extent-tree.c

@@ -2769,7 +2769,6 @@ int btrfs_run_delayed_refs(struct btrfs_trans_handle *trans,
 	struct btrfs_delayed_ref_head *head;
 	int ret;
 	int run_all = count == (unsigned long)-1;
-	int run_most = 0;
 
 	/* We'll clean this up in btrfs_cleanup_transaction */
 	if (trans->aborted)
@@ -2779,10 +2778,8 @@ int btrfs_run_delayed_refs(struct btrfs_trans_handle *trans,
 		root = root->fs_info->tree_root;
 
 	delayed_refs = &trans->transaction->delayed_refs;
-	if (count == 0) {
+	if (count == 0)
 		count = atomic_read(&delayed_refs->num_entries) * 2;
-		run_most = 1;
-	}
 
 again:
 #ifdef SCRAMBLE_DELAYED_REFS