removed dead links (#424)

Author: kwitsch

docs/config.yml

@@ -39,9 +39,7 @@ blocking:
     ads:
       - https://s3.amazonaws.com/lists.disconnect.me/simple_ad.txt
       - https://raw.githubusercontent.com/StevenBlack/hosts/master/hosts
-      - https://mirror1.malwaredomains.com/files/justdomains
       - http://sysctl.org/cameleon/hosts
-      - https://zeustracker.abuse.ch/blocklist.php?download=domainblocklist
       - https://s3.amazonaws.com/lists.disconnect.me/simple_tracking.txt
       - |
         # inline definition with YAML literal block scalar style