function plt_hide_table_of_contents_plus_menus() {
//Hide the "ToC+" menu.
remove_menu_page('table-of-contents');
//Hide the "ToC+ → Settings" menu.
remove_submenu_page('table-of-contents', 'table-of-contents');
//Hide the "ToC+ → About Us" menu.
remove_submenu_page('table-of-contents', 'table-of-contents-about');
}
add_action('admin_menu', 'plt_hide_table_of_contents_plus_menus', 1000);