Fix CA errors.

Author: grokys

src/GitHub.InlineReviews/Services/PullRequestSessionManager.cs

@@ -34,7 +34,6 @@ public class PullRequestSessionManager : ReactiveObject, IPullRequestSessionMana
         readonly IPullRequestSessionService sessionService;
         readonly IConnectionManager connectionManager;
         readonly IModelServiceFactory modelServiceFactory;
-        readonly ITeamExplorerServiceHolder teamExplorerService;
         readonly Dictionary<Tuple<string, int>, WeakReference<PullRequestSession>> sessions =
             new Dictionary<Tuple<string, int>, WeakReference<PullRequestSession>>();
         IPullRequestSession currentSession;
@@ -66,7 +65,6 @@ public PullRequestSessionManager(
             this.sessionService = sessionService;
             this.connectionManager = connectionManager;
             this.modelServiceFactory = modelServiceFactory;
-            this.teamExplorerService = teamExplorerService;
             teamExplorerService.Subscribe(this, x => RepoChanged(x).Forget());
         }
 

src/GitHub.VisualStudio/Services/ConnectionManager.cs

@@ -3,18 +3,16 @@
 using System.Collections.ObjectModel;
 using System.ComponentModel.Composition;
 using System.Linq;
+using System.Threading;
 using System.Threading.Tasks;
 using GitHub.Api;
 using GitHub.Extensions;
 using GitHub.Models;
 using GitHub.Primitives;
 using GitHub.Services;
-using IGitHubClient = Octokit.IGitHubClient;
 using GitHubClient = Octokit.GitHubClient;
+using IGitHubClient = Octokit.IGitHubClient;
 using User = Octokit.User;
-using Serilog;
-using GitHub.Logging;
-using System.Threading;
 
 namespace GitHub.VisualStudio
 {
@@ -24,8 +22,6 @@ namespace GitHub.VisualStudio
     [Export(typeof(IConnectionManager))]
     public class ConnectionManager : IConnectionManager
     {
-        static readonly ILogger log = LogManager.ForContext<ConnectionManager>();
-
         readonly IProgram program;
         readonly IConnectionCache cache;
         readonly IKeychain keychain;