Disables the calendar icon functionality that was added in Event Espresso 4.3

functions.php

<?php
//* Please do NOT include the opening php tag, except of course if you're starting with a blank file

add_action( 'template_redirect', 'my_remove_ical_link' );

function my_remove_ical_link() {
    remove_filter( 'FHEE__espresso_list_of_event_dates__datetime_html', array( 'EED_Ical', 'generate_add_to_iCal_button' ), 10 );
}