How to Hide Ensemble Admin Menus

function plt_hide_ensemble_menus() {
	//Hide "Ensemble".
	remove_menu_page('ensemble-admin');
	//Hide "Ensemble → Ensemble".
	remove_submenu_page('ensemble-admin', 'ensemble-admin');
	//Hide "Ensemble → Venues".
	remove_submenu_page('ensemble-admin', 'ensemble-admin-venues');
	//Hide "Ensemble → Contests".
	remove_submenu_page('ensemble-admin', 'ensemble-admin-contests');
	//Hide "Ensemble → Seasons".
	remove_submenu_page('ensemble-admin', 'edit-tags.php?taxonomy=ensemble_season');
	//Hide "Ensemble → Integrations".
	remove_submenu_page('ensemble-admin', 'ensemble-admin-integrations');

	//Hide "Competing Units".
	remove_menu_page('ensemble-unit-admin');
	//Hide "Competing Units → Competing Units".
	remove_submenu_page('ensemble-unit-admin', 'ensemble-unit-admin');
	//Hide "Competing Units → Units".
	remove_submenu_page('ensemble-unit-admin', 'edit-tags.php?taxonomy=ensemble_unit');
	//Hide "Competing Units → Classifications".
	remove_submenu_page('ensemble-unit-admin', 'edit-tags.php?taxonomy=ensemble_class');
	//Hide "Competing Units → Directors".
	remove_submenu_page('ensemble-unit-admin', 'ensemble-admin-people-directors');
	//Hide "Competing Units → Instructors".
	remove_submenu_page('ensemble-unit-admin', 'ensemble-admin-people-instructors');
}

add_action('admin_menu', 'plt_hide_ensemble_menus', 51);
Where do I put this code?