diff --git a/internal/dao/sakila/sakila.go b/internal/dao/sakila/sakila.go
index 69029e318..0a605bf8c 100644
--- a/internal/dao/sakila/sakila.go
+++ b/internal/dao/sakila/sakila.go
@@ -26,7 +26,3 @@ func NewAuthorizationManageService() core.AuthorizationManageService {
 	logrus.Fatal("not support now")
 	return nil
 }
-
-func CloseDbObject() {
-	logrus.Fatal("not support now")
-}
diff --git a/internal/dao/slonik/slonik.go b/internal/dao/slonik/slonik.go
index 34fd0ae0d..705c5bbf9 100644
--- a/internal/dao/slonik/slonik.go
+++ b/internal/dao/slonik/slonik.go
@@ -26,7 +26,3 @@ func NewAuthorizationManageService() core.AuthorizationManageService {
 	logrus.Fatal("not support now")
 	return nil
 }
-
-func CloseDbObject() {
-	logrus.Fatal("not support now")
-}