Hi Annette,
Definitely possible 🙂
Please review our Themer’s Guide in the first instance as it covers the basics of safely overriding and customizing our templates.
Normally in this situation I’d recommend setting up a custom single-event.php template and simply remove the following line:
<?php echo tribe_event_featured_image( $event_id, 'full', false ); ?>
It may not be quite so simple in your case as, looking at the screenshot you shared, I suspect the theme you are using may have come complete with its own custom event templates (in which case you should seek assistance from the theme author).
Does that help?