Remove memberships on main site when user is deleted from a subsite

susbsite-delete-user-remove-memberships.php

<?php
/**
 * Remove memberships on main site when user is deleted from a subsite.
 *
 * You can add this recipe to your site by creating a custom plugin
 * or using the Code Snippets plugin available for free in the WordPress repository.
 * Read this companion article for step-by-step directions on either method.
 * https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */
 
add_action( 'remove_user_from_blog', 'pmpro_delete_user' );