function plt_hide_soundcloud_master_menus() {
//Hide the "Sound Master" menu.
remove_menu_page('soundcloud-master');
//Hide the "Sound Master → Sound Master" menu.
remove_submenu_page('soundcloud-master', 'soundcloud-master');
//Hide the "Sound Master → Add-ons" menu.
remove_submenu_page('soundcloud-master', 'soundcloud-master-admin-addons');
}
add_action('admin_menu', 'plt_hide_soundcloud_master_menus', 11);