function plt_hide_speedycache_menus() {
//Hide the "SpeedyCache" menu.
remove_menu_page('speedycache');
//Hide the "SpeedyCache → Dashboard" menu.
remove_submenu_page('speedycache', 'speedycache');
//Hide the "SpeedyCache → AI Abilities New!" menu.
remove_submenu_page('speedycache', 'speedycache-ai-abilities');
}
add_action('admin_menu', 'plt_hide_speedycache_menus', 11);