[tor-wiki-changes] doc/Preventing_Tor_DNS_Leaks edited

[Tor Bug Tracker & Wiki: cypherpunks]

Remove spam. 

([diff](https://trac.torproject.org/projects/tor/wiki/doc/Preventing_Tor_DNS_Leaks?action=diff&version=49))

URL: https://trac.torproject.org/projects/tor/wiki/doc/Preventing_Tor_DNS_Leaks?version=49