function plt_hide_without_reviews_finder_menus() {
//Hide the "Without Reviews Finder" menu.
remove_menu_page('wrfnder');
//Hide the "Without Reviews Finder → Search Plugins Without Reviews" menu.
remove_submenu_page('wrfnder', 'wrfnder-search');
}
add_action('admin_menu', 'plt_hide_without_reviews_finder_menus', 100);