function plt_hide_sv_media_library_menus() {
//Hide the "straightvisions" menu.
remove_menu_page('straightvisions');
//Hide the "straightvisions → Info" menu.
remove_submenu_page('straightvisions', 'straightvisions');
//Hide the "straightvisions → SV Media Library" menu.
remove_submenu_page('straightvisions', 'sv_media_library');
}
add_action('admin_menu', 'plt_hide_sv_media_library_menus', 11);