hide free from RSVP cost

functions.php

function hide_free_from_rsvp() {
    ?>
        <script type="text/javascript">
          // your javscript code goes here
          jQuery( document ).ready(function() {
             jQuery('.tribe-events-event-cost, .tribe-events-cost').each(function() {
                jQuery(".tribe-events-event-cost").text().replace("Gratis – ", "")
                var text = jQuery(this).text();
                text = text.replace("Gratis – ", "");
                jQuery(this).text(text);
            });
          });
        </script>
    <?php
}
add_action('wp_head', 'hide_free_from_rsvp');