The only way to remove it is to edit the template
So to remove it though please follow our themer’s guide:
https://theeventscalendar.com/knowledgebase/themers-guide/
Then according to the guide you are going to have to move this file to your theme to edit:
\events-calendar-pro\views\pro\widgets\modules\single-event.php
In that file you will want to remove or comment out this section:
<div class="list-date">
<span
class="list-dayname"><?php echo apply_filters( 'tribe-mini_helper_tribe_events_ajax_list_dayname', date_i18n( 'D', $postDate ), $postDate, $class ); ?></span>
<span
class="list-daynumber"><?php echo apply_filters( 'tribe-mini_helper_tribe_events_ajax_list_daynumber', date_i18n( 'd', $postDate ), $postDate, $class ); ?></span>
</div>
You may have to add some css to style it once that section is gone.