function plt_hide_multilingual_contact_form_7_with_polylang_menus() {
//Hide the "Settings → Multilangual CF7 Polylang" menu.
remove_submenu_page('options-general.php', 'mlcf7pll-plugin-settings');
}
add_action('admin_menu', 'plt_hide_multilingual_contact_form_7_with_polylang_menus', 11);