How to Hide Event Agent Admin Menus

function plt_hide_event_agent_menus() {
	//Hide "EA Config".
	remove_menu_page('ea-config');
	//Hide "EA Marketer".
	remove_menu_page('ea-marketer');

	//Hide "EA Event Admin".
	remove_menu_page('ea-event-admin');
	//Hide "EA Event Admin → Events".
	remove_submenu_page('ea-event-admin', 'ea-events');
	//Hide "EA Event Admin → Speakers".
	remove_submenu_page('ea-event-admin', 'ea-speakers');
	//Hide "EA Event Admin → Venues".
	remove_submenu_page('ea-event-admin', 'ea-venues');
	//Hide "EA Event Admin → Categories".
	remove_submenu_page('ea-event-admin', 'ea-categories');
	//Hide "EA Event Admin → Forms".
	remove_submenu_page('ea-event-admin', 'ea-forms');
	//Hide "EA Event Admin → Carousels".
	remove_submenu_page('ea-event-admin', 'ea-carousels');

	//Hide "EA Registrar".
	remove_menu_page('ea-registrations-admin');
	//Hide "EA Registrar → Registrations".
	remove_submenu_page('ea-registrations-admin', 'ea-registrations');
	//Hide "EA Registrar → Customers".
	remove_submenu_page('ea-registrations-admin', 'ea-customers');
	//Hide "EA Registrar → Coupons".
	remove_submenu_page('ea-registrations-admin', 'ea-coupons');
}

add_action('admin_menu', 'plt_hide_event_agent_menus', 11);
Where do I put this code?