Good evening Sally and welcome back!
Thank you for reaching out to us.
I would love to help you with this topic.
The simplest way to get rid of the single event nav is to create a template override for the single event view.
You might want to read our Themer’s guide to get a sense of how that works.
You can also use the following CSS rule in your style.css file or in your theme’s custom CSS section:
.tribe-events-single .tribe-events-sub-nav .tribe-events-nav-previous, .tribe-events-single .tribe-events-sub-nav .tribe-events-nav-next {display:none !important;}
Let me know how that goes.
Best regards,
Geoff B.