function plt_hide_wa_chatbox_manager_menus() {
//Hide the "TIP Plugins" menu.
remove_menu_page('tip_plugins_panel');
//Hide the "TIP Plugins → Chatbox Manager" menu.
remove_submenu_page('tip_plugins_panel', 'chatbox_manager_panel');
}
add_action('admin_menu', 'plt_hide_wa_chatbox_manager_menus', 12);