How to Hide Booking Calendar WpDevArt Admin Menus

function plt_hide_booking_calendar_menus() {
	//Hide "Booking".
	remove_menu_page('wpdevart-calendars');
	//Hide "Booking → Calendars".
	remove_submenu_page('wpdevart-calendars', 'wpdevart-calendars');
	//Hide "Booking → Reservations".
	remove_submenu_page('wpdevart-calendars', 'wpdevart-reservations');
	//Hide "Booking → Forms".
	remove_submenu_page('wpdevart-calendars', 'wpdevart-forms');
	//Hide "Booking → Extras".
	remove_submenu_page('wpdevart-calendars', 'wpdevart-extras');
	//Hide "Booking → Themes".
	remove_submenu_page('wpdevart-calendars', 'wpdevart-themes');
	//Hide "Booking → Global Settings".
	remove_submenu_page('wpdevart-calendars', 'wpdevart-global-settings');
	//Hide "Booking → User Permissions".
	remove_submenu_page('wpdevart-calendars', 'wpdevart-user-permissions');
	//Hide "Booking → Uninstall".
	remove_submenu_page('wpdevart-calendars', 'wpdevart-booking-uninstall');
	//Hide "Booking → Featured plugins".
	remove_submenu_page('wpdevart-calendars', 'wpdevart-booking-featured-plugins');
	//Hide "Booking → Featured themes".
	remove_submenu_page('wpdevart-calendars', 'wpdevart-booking-featured-themes');
	//Hide "Booking → Hire an Expert".
	remove_submenu_page('wpdevart-calendars', 'wpdevart-booking-hire-expert');
	//Hide "Booking → Support or Any Ideas?".
	remove_submenu_page('wpdevart-calendars', 'https://wordpress.org/support/plugin/booking-calendar/#new-post');
}

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

Where do I put this code?