btrfs: remove obsolete comment in btrfs_clean_one_deleted_snapshot

The comment applied when there was a BUG_ON.

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index d89c6d3..977717b 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -1981,9 +1981,6 @@
 		ret = btrfs_drop_snapshot(root, NULL, 0, 0);
 	else
 		ret = btrfs_drop_snapshot(root, NULL, 1, 0);
-	/*
-	 * If we encounter a transaction abort during snapshot cleaning, we
-	 * don't want to crash here
-	 */
+
 	return (ret < 0) ? 0 : 1;
 }