Clean up redundant usings

Author: jcansdale

src/GitHub.App/Services/PullRequestService.cs

@@ -14,7 +14,6 @@
 using System.Reactive;
 using System.Collections.Generic;
 using LibGit2Sharp;
-using System.Diagnostics;
 using GitHub.Logging;
 
 namespace GitHub.Services

src/GitHub.App/ViewModels/GitHubPane/GitHubPaneViewModel.cs

@@ -15,7 +15,6 @@
 using GitHub.Primitives;
 using GitHub.Services;
 using GitHub.VisualStudio;
-using GitHub.Helpers;
 using ReactiveUI;
 using OleMenuCommand = Microsoft.VisualStudio.Shell.OleMenuCommand;
 

src/GitHub.App/ViewModels/GitHubPane/PullRequestDetailViewModel.cs

@@ -4,8 +4,6 @@
 using System.IO;
 using System.Linq;
 using System.Reactive;
-using System.ComponentModel;
-using System.Reactive.Disposables;
 using System.Reactive.Linq;
 using System.Reactive.Threading.Tasks;
 using System.Threading.Tasks;

src/GitHub.Exports/Models/IBranch.cs

@@ -1,5 +1,5 @@
-using GitHub.Collections;
-using System;
+using System;
+using GitHub.Collections;
 
 namespace GitHub.Models
 {

src/GitHub.InlineReviews/Services/PullRequestSessionManager.cs

@@ -10,7 +10,6 @@
 using System.Threading.Tasks;
 using GitHub.Extensions;
 using GitHub.Factories;
-using GitHub.Helpers;
 using GitHub.InlineReviews.Models;
 using GitHub.Logging;
 using GitHub.Models;

test/GitHub.InlineReviews.UnitTests/Services/PullRequestSessionManagerTests.cs

@@ -3,6 +3,7 @@
 using System.Linq;
 using System.Reactive.Linq;
 using System.Reactive.Subjects;
+using System.Reactive.Disposables;
 using System.Text;
 using System.Threading.Tasks;
 using GitHub.Factories;
@@ -17,7 +18,6 @@
 using Microsoft.VisualStudio.Utilities;
 using NSubstitute;
 using NUnit.Framework;
-using System.Reactive.Disposables;
 
 namespace GitHub.InlineReviews.UnitTests.Services
 {

test/UnitTests/GitHub.TeamFoundation/VSGitExtTests.cs

@@ -1,5 +1,4 @@
 using System;
-using System.Linq;
 using System.Threading;
 using System.ComponentModel;
 using System.Collections.Generic;