How to Hide AcyMailing Admin Menus

function plt_hide_acymailing_menus() {
	//Hide "AcyMailing".
	remove_menu_page('acymailing_dashboard');
	//Hide "AcyMailing → Dashboard".
	remove_submenu_page('acymailing_dashboard', 'acymailing_dashboard');
	//Hide "AcyMailing → Subscription forms".
	remove_submenu_page('acymailing_dashboard', 'acymailing_forms');
	//Hide "AcyMailing → Subscribers".
	remove_submenu_page('acymailing_dashboard', 'acymailing_users');
	//Hide "AcyMailing → Custom fields".
	remove_submenu_page('acymailing_dashboard', 'acymailing_fields');
	//Hide "AcyMailing → Lists".
	remove_submenu_page('acymailing_dashboard', 'acymailing_lists');
	//Hide "AcyMailing → Emails".
	remove_submenu_page('acymailing_dashboard', 'acymailing_campaigns');
	//Hide "AcyMailing → Templates".
	remove_submenu_page('acymailing_dashboard', 'acymailing_mails');
	//Hide "AcyMailing → Email overrides".
	remove_submenu_page('acymailing_dashboard', 'acymailing_override');
	//Hide "AcyMailing → Queue".
	remove_submenu_page('acymailing_dashboard', 'acymailing_queue');
	//Hide "AcyMailing → Statistics".
	remove_submenu_page('acymailing_dashboard', 'acymailing_stats');
	//Hide "AcyMailing → Add-ons".
	remove_submenu_page('acymailing_dashboard', 'acymailing_plugins');
	//Hide "AcyMailing → Configuration".
	remove_submenu_page('acymailing_dashboard', 'acymailing_configuration');
	//Hide "AcyMailing → Go Pro".
	remove_submenu_page('acymailing_dashboard', 'acymailing_gopro');
}

add_action('admin_menu', 'plt_hide_acymailing_menus', 100);
Where do I put this code?