public function section_remove_icon($section) {
        $title = get_string('sectionheadingremove', 'quiz', $section->heading);
        $url = new \moodle_url('/mod/quiz/edit.php',
                array('sesskey' => sesskey(), 'removesection' => '1', 'sectionid' => $section->id));
        $image = $this->pix_icon('t/delete', $title);
        return $this->action_link($url, $image, null, array(
                'class' => 'cm-edit-action editing_delete', 'data-action' => 'deletesection'));
    }