diff --git a/models/issue_label.go b/models/issue_label.go
index 97c8b1a1f15da..d1ff4692366d0 100644
--- a/models/issue_label.go
+++ b/models/issue_label.go
@@ -779,36 +779,3 @@ func deleteLabelsByRepoID(sess Engine, repoID int64) error {
 	_, err := sess.Delete(&Label{RepoID: repoID})
 	return err
 }
-
-// CountWrongLabels counts wrong data in issue_label and label
-func CountWrongLabels() (int64, int64, error) {
-	wrongLabels, err := x.Where("repo_id > 0 and repo_id not in (select id from repository)").Count(new(Label))
-	if err != nil {
-		return 0, 0, err
-	}
-
-	wrongIssueLabels, err := x.Where("label_id IN (select id from label where repo_id > 0 and repo_id not in (select id from repository))").Count(new(IssueLabel))
-	if err != nil {
-		return 0, 0, err
-	}
-
-	return wrongLabels, wrongIssueLabels, nil
-}
-
-// FixWrongLabels fix wrong data in label
-func FixWrongLabels() (int64, error) {
-	res, err := x.Exec("DELETE FROM label WHERE repo_id > 0 and repo_id not in (select id from repository)")
-	if err != nil {
-		return 0, err
-	}
-	return res.RowsAffected()
-}
-
-// FixWrongIssueLables fix wrong label data
-func FixWrongIssueLables() (int64, error) {
-	res, err := x.Exec("DELETE FROM issue_label WHERE label_id in (select id FROM label WHERE repo_id > 0 and repo_id not in (select id from repository))")
-	if err != nil {
-		return 0, err
-	}
-	return res.RowsAffected()
-}