There Forked from the GitLab in.
How do I delete this?
In Settings, choose General
Then select Advanced Advanced Options
And then click the option to remove the fork relations, you can delete this relationship.
Please note that when you delete this Fork relationship, you will not be able to continue to Merge your changes to your original fork to the project.
Sure you want to delete this relationship.
Visit the front page, confirm that the relationship has been deleted from the project.