Hide usergroup from customer

Hide usergroup from customer

Create menu item "User"
Customer logs in and sees his account information. Example:

Mein Konto
Vorname Name
Stadt: St. Gallen
Land: Schweiz
E-Mail: customer@xy.ch
Gruppen: Kunden mit 10% Rabatt (Rabatt: 10%) Alle Gruppen
Kunden-Adressdaten bearbeiten
Bestellungen ansehen
Logout

How can I prevent the usergroup (bold line) from being displayed here? Thanks!

---

Aw: Hide usergroup from customer

Configuration / other config

Show user groups info
Show user group