cleanup

Author: arturcic

src/GitVersionCore.Tests/Core/RepositoryExtensionsTests.cs

@@ -1,10 +1,8 @@
-using GitTools.Testing;
 using GitVersion.Logging;
 using GitVersion.Extensions;
 using GitVersionCore.Tests.Helpers;
 using LibGit2Sharp;
 using NUnit.Framework;
-using System.Linq;
 using NSubstitute;
 using System;
 using System.Collections.Generic;
@@ -41,7 +39,7 @@ private Remote MockRemote(IGitRepository repository)
             var head = branches.Add("refs/heads/feature/feat-test", tip);
             var remote = new TesatbleRemote("origin");
             var references = new TestableReferenceCollection();
-            var reference = references.Add("develop", "refs/heads/develop");
+            _ = references.Add("develop", "refs/heads/develop");
 
             repository.Refs.Returns(references);
             repository.Head.Returns(head);

src/GitVersionCore/Core/GitRepositoryCommands.cs

@@ -15,7 +15,7 @@ public class GitRepositoryCommands : IGitRepositoryCommands
 
         public GitRepositoryCommands(Lazy<IRepository> lazyRepository)
         {
-            this.lazyRepository = lazyRepository ?? throw new System.ArgumentNullException(nameof(lazyRepository));
+            this.lazyRepository = lazyRepository ?? throw new ArgumentNullException(nameof(lazyRepository));
         }
 
         public Branch Checkout(string committishOrBranchSpec)