public static void RemoveAllIdentity(TicketDeskIdentityContext context)
        {
            foreach (var user in context.Users)
            {
                context.Users.Remove(user);
            }
            foreach (var role in context.Roles)
            {
                context.Roles.Remove(role);
            }

            //the context itself will ensure that at least one valid admin user accout remains

            context.SaveChanges();
        }