ow_plugins\event\controllers\base.php is the file and below is the place you have play with.

This is for both edit and delete. So be careful to modify the code.

The other way is to edit the base_view.html to remove the delete link.
       
if ( OW::getUser()->isAuthorized('event') || OW::getUser()->getId() == $event->getUserId() )
        {
            $this->assign('editArray', array(
                'edit' => array('url' => OW::getRouter()->urlForRoute('event.edit', array('eventId' => $event->getId())), 'label' => OW::getLanguage()->text('event', 'edit_button_label')),
                'delete' =>
                array(
                    'url' => OW::getRouter()->urlForRoute('event.delete', array('eventId' => $event->getId())),
                    'label' => OW::getLanguage()->text('event', 'delete_button_label'),
                    'confirmMessage' => OW::getLanguage()->text('event', 'delete_confirm_message')
                ),
                )
            );
        }

Topic was moved from General Questions.

thanks for a quick response :)

I have deleted the line

 <li><a href="{$editArray.delete.url}" class="ow_mild_red" onclick="return confirm('{$editArray.delete.confirmMessage}');">{$editArray.delete.label}</a></li>
from the base_view.html file but the delete button still shows, any ideas?

Refresh the cache.. by enabling DEV mode in config.php file

That fixed it, thanks for your help

Welcome.