[Plugin: Ajax Event Calendar] Disable all day long events

Dear Forumers!

I would like to disable the all-day-long events in my Ajax Event Calendar and the ‘repeat option’
I am kinda newbie in php so could you please explain me how I could do this?
I am sure I’d only need to delete a few rows but which ones?

Thanks for your help!

https://www.ads-software.com/extend/plugins/ajax-event-calendar/