Clean unused usings

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

@@ -1,6 +1,5 @@
 using System;
 using System.Collections.Generic;
-using System.Collections.Specialized;
 using System.Globalization;
 using System.Linq;
 using System.Net;

src/NzbDrone.Core/Indexers/Definitions/BroadcastheNet/BroadcastheNetRequestGenerator.cs

@@ -1,6 +1,5 @@
 using System;
 using System.Collections.Generic;
-using NzbDrone.Common.Extensions;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.IndexerSearch.Definitions;
 

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

@@ -1,6 +1,5 @@
 using System;
 using System.Collections.Generic;
-using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using FluentValidation.Results;

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

@@ -1,4 +1,3 @@
-using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text.RegularExpressions;

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

@@ -3,7 +3,6 @@ using System.Collections.Generic;
 using System.Collections.Specialized;
 using System.Globalization;
 using System.Linq;
-using System.Text.RegularExpressions;
 using System.Threading.Tasks;
 using AngleSharp.Html.Parser;
 using FluentValidation;

src/NzbDrone.Core/Indexers/Definitions/UNIT3D/Unit3dApi.cs

@@ -1,8 +1,4 @@
-using System;
 using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 using Newtonsoft.Json;
 
 namespace NzbDrone.Core.Indexers.Definitions.UNIT3D

src/NzbDrone.Core/Indexers/Definitions/UNIT3D/Unit3dBase.cs

@@ -1,7 +1,3 @@
-using System;
-using System.Net;
-using System.Threading.Tasks;
-using FluentValidation.Results;
 using NLog;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.Configuration;