turn off previous and next post links

I am using theme with wpcourseware which uses a drag and drop builder to order posts so the ID is not used to show the course next and previous links. They use their own index to keep track of the order. This allows for course units (custom posts) to be placed in any order regardless of the publishing ID assigned by WP. It also puts the course units links out of order shown by theme previous and next links which are by post ID.

Where in the dashboard can I turn off show previous and next links produced by the theme?