Can I delete unwanted language packs? If so, how? Hello

Can I delete unwanted language packs? If so, how?

Hello wpmudev team, I changed my webhoster and with the new one I got a new wordpress service. Now I got very often language pack updates. Actually, I need only German and English, but got Spanish, Turkish, Russian, Swedish, and many more. How can I delete them? Or I can not delete them?

Best regards
Arnim