diff --git a/tracker/tracker.go b/tracker/tracker.go
index a4ab03e..f69ff52 100644
--- a/tracker/tracker.go
+++ b/tracker/tracker.go
@@ -15,7 +15,6 @@ import (
 type Tracker interface {
 	Restore(iter.IteratorConstructor) ([]trie.NodeIterator, error)
 	Tracked(trie.NodeIterator) trie.NodeIterator
-	CloseAndSave() error
 }
 
 var _ Tracker = &trackerAdaptor{}