How to delete a materials' language
This article is for certification brands.
If you are not familiar with the concept of materials language, read the article Managing Available Material Languages first.
Go to the Account Settings -> Settings.
In the module Materials' Language, find the language and click the Delete link
When you delete a language, it disappears from the event form. No new event can be created with the removed language. However, the removal of the language doesn’t modify existing events.
If you want to remove all materials languages at once, click the Deactivate button.