Remove redundant IP address type test that prevented using DNSCheck on, for example, private DNS roots.
Remove redundant IP address type test that prevented using DNSCheck on, for example, private DNS roots.

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