How to Hide RankShield — Ranking & Ad-Spend Attack Protection Admin Menus

function plt_hide_rankshield_ranking_ad_spend_attack_protection_menus() {
	//Hide "RankShield".
	remove_menu_page('rankshield');
	//Hide "RankShield → Dashboard".
	remove_submenu_page('rankshield', 'rankshield');
	//Hide "RankShield → SEO".
	remove_submenu_page('rankshield', 'rankshield-seo');
	//Hide "RankShield → Audience".
	remove_submenu_page('rankshield', 'rankshield-audience');
	//Hide "RankShield → SEO ROI".
	remove_submenu_page('rankshield', 'rankshield-seo-roi');
	//Hide "RankShield → Live Traffic".
	remove_submenu_page('rankshield', 'rankshield-traffic');
	//Hide "RankShield → Ad Protection".
	remove_submenu_page('rankshield', 'rankshield-ads');
	//Hide "RankShield → Plans".
	remove_submenu_page('rankshield', 'rankshield-plans');
	//Hide "RankShield → Edge".
	remove_submenu_page('rankshield', 'rankshield-edge');
	//Hide "RankShield → Connections".
	remove_submenu_page('rankshield', 'rankshield-connections');
	//Hide "RankShield → Settings".
	remove_submenu_page('rankshield', 'rankshield-settings');
}

add_action('admin_menu', 'plt_hide_rankshield_ranking_ad_spend_attack_protection_menus', 11);

Where do I put this code?