function plt_hide_ultimate_addons_for_gutenberg_menus() {
//Hide the "Settings → UAG" menu.
remove_submenu_page('options-general.php', 'uag');
//Hide the "Settings → Tools" menu.
remove_submenu_page('options-general.php', 'uag-tools');
}
add_action('admin_menu', 'plt_hide_ultimate_addons_for_gutenberg_menus', 11);