But they remain enrolled in the course, the message looks like this:
```
{_("Dear {full_name}").format(full_name=full_name)}

${_("You have been removed as a beta tester for {course_name} at {site_name} by a "
        "member of the course staff. The course will remain on your dashboard, but "
        "you will no longer be part of the beta testing group.").format(
                course_name=course.display_name_with_default,
                site_name=site_name
        )}

${_("Your other courses have not been affected.")}
```