diff --git a/.deadcode-out b/.deadcode-out
index f63a880743..dcae3a4367 100644
--- a/.deadcode-out
+++ b/.deadcode-out
@@ -42,7 +42,6 @@ code.gitea.io/gitea/models/issues
 	IsErrIssueWasClosed
 
 code.gitea.io/gitea/models/organization
-	UpdateTeamUnits
 	SearchMembersOptions.ToConds
 
 code.gitea.io/gitea/models/perm/access
diff --git a/models/organization/team_unit.go b/models/organization/team_unit.go
index 3087b70770..b5237c2c58 100644
--- a/models/organization/team_unit.go
+++ b/models/organization/team_unit.go
@@ -28,24 +28,3 @@ func (t *TeamUnit) Unit() unit.Unit {
 func getUnitsByTeamID(ctx context.Context, teamID int64) (units []*TeamUnit, err error) {
 	return units, db.GetEngine(ctx).Where("team_id = ?", teamID).Find(&units)
 }
-
-// UpdateTeamUnits updates a teams's units
-func UpdateTeamUnits(ctx context.Context, team *Team, units []TeamUnit) (err error) {
-	ctx, committer, err := db.TxContext(ctx)
-	if err != nil {
-		return err
-	}
-	defer committer.Close()
-
-	if _, err = db.GetEngine(ctx).Where("team_id = ?", team.ID).Delete(new(TeamUnit)); err != nil {
-		return err
-	}
-
-	if len(units) > 0 {
-		if err = db.Insert(ctx, units); err != nil {
-			return err
-		}
-	}
-
-	return committer.Commit()
-}
diff --git a/modules/repository/collaborator_test.go b/modules/repository/collaborator_test.go
index 3844197bf1..63352e33e8 100644
--- a/modules/repository/collaborator_test.go
+++ b/modules/repository/collaborator_test.go
@@ -272,8 +272,7 @@ func TestRepoPermissionPrivateOrgRepo(t *testing.T) {
 
 	// update team information and then check permission
 	team := unittest.AssertExistsAndLoadBean(t, &organization.Team{ID: 5})
-	err = organization.UpdateTeamUnits(db.DefaultContext, team, nil)
-	require.NoError(t, err)
+	unittest.AssertSuccessfulDelete(t, &organization.TeamUnit{TeamID: team.ID})
 	perm, err = access_model.GetUserRepoPermission(db.DefaultContext, repo, owner)
 	require.NoError(t, err)
 	for _, unit := range repo.Units {