function plt_hide_fast_indexing_api_menus() {
//Hide the "Rank Math" menu.
remove_menu_page('instant-indexing-dashboard');
//Hide the "Rank Math → Dashboard" menu.
remove_submenu_page('instant-indexing-dashboard', 'instant-indexing-dashboard');
//Hide the "Rank Math → Instant Indexing" menu.
remove_submenu_page('instant-indexing-dashboard', 'instant-indexing');
}
add_action('admin_menu', 'plt_hide_fast_indexing_api_menus', 21);