OZnzb removed

Closes #3123

src/NzbDrone.Core/Indexers/Newznab/Newznab.cs

@@ -53,7 +53,6 @@ namespace NzbDrone.Core.Indexers.Newznab
                 yield return GetDefinition("NZBFinder.ws", GetSettings("https://nzbfinder.ws"));
                 yield return GetDefinition("NZBgeek", GetSettings("https://api.nzbgeek.info"));
                 yield return GetDefinition("nzbplanet.net", GetSettings("https://api.nzbplanet.net"));
-                yield return GetDefinition("OZnzb.com", GetSettings("https://api.oznzb.com"));
                 yield return GetDefinition("SimplyNZBs", GetSettings("https://simplynzbs.com"));
                 yield return GetDefinition("Tabula Rasa", GetSettings("https://www.tabula-rasa.pw", apiPath: @"/api/v1/api"));
                 yield return GetDefinition("Usenet Crawler", GetSettings("https://www.usenet-crawler.com"));