The staging area is the only place where teachers have the ability to remove courses.
If you wish to remove other courses you will need to submit a course removal request.
Login to Moodle.
From the right-side of the Tertiary navigation expand the grey More button.
Select the Manage Courses item.
Locate the first course you want to remove in the second column (may require some scrolling).
Click the corresponding trashbin icon for the course you want to delete.
You will be asked to confirm this. Ensure the course name is the one you meant to click.
Click the Delete button when you’re sure.
Scroll to the bottom of the page.
Click the Continue button.
Repeat as desired for each course you wish to remove.