nixos/nginx: remove unnecessary acme locations to allow double proxied setups

        redirectListen = filter (x: !x.ssl) defaultListen;

        acmeLocation = optionalString (vhost.enableACME || vhost.useACMEHost != null) ''

        # The acme-challenge location doesn't need to be added if we are not using any automated

        # certificate provisioning and can also be omitted when we use a certificate obtained via a DNS-01 challenge

        acmeLocation = optionalString (vhost.enableACME || (vhost.useACMEHost != null && config.security.acme.certs.${vhost.useACMEHost}.dnsProvider == null)) ''

          # Rule for legitimate ACME Challenge requests (like /.well-known/acme-challenge/xxxxxxxxx)

          # We use ^~ here, so that we don't check any regexes (which could

          # otherwise easily override this intended match accidentally).