How to Hide SEO Audit - WP Site Auditor Admin Menus

function plt_hide_seo_site_auditor_agency_menus() {
	//Hide "Site Auditor".
	remove_menu_page('wpsewcc_welcome_page');
	//Hide "Site Auditor → Site Auditor".
	remove_submenu_page('wpsewcc_welcome_page', 'wpsewcc_welcome_page');
	//Hide "Site Auditor → Settings".
	remove_submenu_page('wpsewcc_welcome_page', 'site_audit_settings');
	//Hide "Site Auditor → Contact Us".
	remove_submenu_page('wpsewcc_welcome_page', 'wpsewcc_welcome_page-contact');
	//Hide "Site Auditor → Upgrade".
	remove_submenu_page('wpsewcc_welcome_page', 'wpsewcc_welcome_page-pricing');
}

add_action('admin_menu', 'plt_hide_seo_site_auditor_agency_menus', 1000000000);

Where do I put this code?