Cleanup: (Rutracker) Purge unused using statements

src/NzbDrone.Core/Indexers/Definitions/RuTracker.cs

@@ -9,18 +9,14 @@ using AngleSharp.Dom;
 using AngleSharp.Html.Parser;
 using FluentValidation;
 using NLog;
-using NzbDrone.Common.Cache;
-using NzbDrone.Common.Extensions;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.Annotations;
 using NzbDrone.Core.Configuration;
-using NzbDrone.Core.Indexers.Definitions.Cardigann;
 using NzbDrone.Core.Indexers.Exceptions;
 using NzbDrone.Core.IndexerSearch.Definitions;
 using NzbDrone.Core.Messaging.Events;
 using NzbDrone.Core.Parser;
 using NzbDrone.Core.Parser.Model;
-using NzbDrone.Core.ThingiProvider;
 using NzbDrone.Core.Validation;
 
 namespace NzbDrone.Core.Indexers.Definitions