To remove the Course Participants List that are enrolled on the courses (LearnDash), please follow the steps below:

    1. Navigate to the BuddyBoss dashboard - Theme Options.

    2. Under the LearnDash tab, toggle the option for Course Participants under the Course Content section.

    3. Don't forget to click on "Save Changes" to apply the settings.

You may refer to the screenshot below:

The default view on the frontend:

After disabling the option: