Remove unused usings

Author: dahlbyk

LibGit2Sharp.Tests/ConfigurationFixture.cs

@@ -1,5 +1,4 @@
 using System;
-using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using LibGit2Sharp.Tests.TestHelpers;

LibGit2Sharp.Tests/IgnoreFixture.cs

@@ -1,8 +1,5 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
+using System.IO;
 using System.Linq;
-using System.Text;
 using LibGit2Sharp.Tests.TestHelpers;
 using Xunit;
 

LibGit2Sharp.Tests/MergeFixture.cs

@@ -1,5 +1,4 @@
-using System;
-using System.IO;
+using System.IO;
 using System.Linq;
 using LibGit2Sharp.Tests.TestHelpers;
 using Xunit;

LibGit2Sharp.Tests/RemoteFixture.cs

@@ -1,6 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
+using System.Collections.Generic;
 using LibGit2Sharp.Tests.TestHelpers;
 using Xunit;
 using Xunit.Extensions;

LibGit2Sharp.Tests/TestHelpers/ExpectedFetchState.cs

@@ -1,7 +1,5 @@
-using System;
-using System.Collections.Generic;
+using System.Collections.Generic;
 using System.Linq;
-using System.Text;
 using Xunit;
 
 namespace LibGit2Sharp.Tests.TestHelpers

LibGit2Sharp.Tests/TestHelpers/TestRemoteInfo.cs

@@ -1,8 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using LibGit2Sharp.Core.Compat;
+using System.Collections.Generic;
 
 namespace LibGit2Sharp.Tests.TestHelpers
 {

LibGit2Sharp/NetworkExtensions.cs

@@ -1,9 +1,6 @@
 using System.Globalization;
 using LibGit2Sharp.Core;
-using System;
 using System.Collections.Generic;
-using System.Linq;
-using System.Text;
 
 namespace LibGit2Sharp
 {

LibGit2Sharp/PushResult.cs

@@ -1,7 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
+using System.Collections.Generic;
 
 namespace LibGit2Sharp
 {