How to Hide TicketPayGo Lite Admin Menus

function plt_hide_ticketpaygo_lite_menus() {
	//Hide "TicketPayGo Lite".
	remove_menu_page('ticketpaygo-lite');
	//Hide "TicketPayGo Lite → Dashboard".
	remove_submenu_page('ticketpaygo-lite', 'ticketpaygo-lite');
	//Hide "TicketPayGo Lite → Events".
	remove_submenu_page('ticketpaygo-lite', 'ticketpaygo-lite-events');
	//Hide "TicketPayGo Lite → Orders".
	remove_submenu_page('ticketpaygo-lite', 'ticketpaygo-lite-orders');
	//Hide "TicketPayGo Lite → Check-in".
	remove_submenu_page('ticketpaygo-lite', 'ticketpaygo-lite-checkin');
	//Hide "TicketPayGo Lite → Settings".
	remove_submenu_page('ticketpaygo-lite', 'ticketpaygo-lite-settings');
	//Hide "TicketPayGo Lite → Upgrade".
	remove_submenu_page('ticketpaygo-lite', 'ticketpaygo-lite-upgrade');
}

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

Where do I put this code?