Hide Event Image in form

I’m hiding the Event Image in the Submission Form using:

.event-form-image, .event-form-image-title {display:none}

I’m doing this because I did not find a switch to disable Event Images on that form. I had to edit events-manager.php to add a class to the h3 for “Event Image”:

<h3 class="event-form-image-title"><?php esc_html_e( 'Event Image', 'events-manager'); ?></h3>

Can either the class I added be integrated into the plugin so I don’t have to re-edit the plugin every time it gets updated? Or, preferably, can a setting be added to hide the Event Image section from the form?

The page I need help with: [log in to see the link]