While it's not possible to delete Courses, you are able to archive them so they no longer appear in your main Courses list.
You might want to archive an old or superseded Course to keep your list of recent or active Courses more organized.
Go to Courses from the top menu and click Courses Management
Click on the vertical ellipses next to the Course you want to archive, then click Archive
A confirmation message will pop up asking if you're sure you'd like to proceed. Click Yes to archive the Course.
Once a Course is archived it will be moved to your archived list.
Tip: You can always restore archived Courses. Filter by 'Archived' status, find the Course you want, then click the Restore button. Nice and easy.