function plt_hide_fileorganizer_menus() {
//Hide the "File Organizer" menu.
remove_menu_page('fileorganizer');
//Hide the "File Organizer → File Organizer" menu.
remove_submenu_page('fileorganizer', 'fileorganizer');
//Hide the "File Organizer → Settings" menu.
remove_submenu_page('fileorganizer', 'fileorganizer-settings');
}
add_action('admin_menu', 'plt_hide_fileorganizer_menus', 11);