Remove no longer used method.
Remove no longer used method.

NZRS/dnscheck,NZRS/dnscheck,NZRS/dnscheck,dotse/dnscheck,dotse/dnscheck,NZRS/dnscheck,NZRS/dnscheck,dotse/dnscheck,dotse/dnscheck,dotse/dnscheck,dotse/dnscheck,NZRS/dnscheck