How to Hide JS Help Desk Admin Menus

function plt_hide_js_support_ticket_menus() {
	//Hide "Help Desk".
	remove_menu_page('jssupportticket');
	//Hide "Help Desk → Help Desk".
	remove_submenu_page('jssupportticket', 'jssupportticket');
	//Hide "Help Desk → Tickets".
	remove_submenu_page('jssupportticket', 'ticket');
	//Hide "Help Desk → Fields".
	remove_submenu_page('jssupportticket', 'fieldordering');
	//Hide "Help Desk → Configurations".
	remove_submenu_page('jssupportticket', 'configuration');
	//Hide "Help Desk → Priority".
	remove_submenu_page('jssupportticket', 'priority');
	//Hide "Help Desk → Departments".
	remove_submenu_page('jssupportticket', 'department');
	//Hide "Help Desk → Themes".
	remove_submenu_page('jssupportticket', 'themes');
	//Hide "Help Desk → Reports".
	remove_submenu_page('jssupportticket', 'reports');
	//Hide "Help Desk → Email Templates".
	remove_submenu_page('jssupportticket', 'emailtemplate');
	//Hide "Help Desk → Translations".
	remove_submenu_page('jssupportticket', 'jssupportticket&jstlay=translations');
	//Hide "Help Desk → Premium Addons".
	remove_submenu_page('jssupportticket', 'premiumplugin');
	//Hide "Help Desk → Help".
	remove_submenu_page('jssupportticket', 'jssupportticket&jstlay=help');
}

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

Where do I put this code?