Example of how to remove the EE4 Multi Event Modal from a specific page

tw_ee_remove_mer_modal.php

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

add_action('wp_head', 'tw_ee_remove_mer_modal', 10);
function tw_ee_remove_mer_modal( ) {
    if ( is_page('2022-wonder-garden-plant-sale') ) {
        remove_action('wp_footer', ['EED_Multi_Event_Registration', 'cart_results_modal_div'], 1);
    }
}