Merge pull request #1610 from nunit/issue-1578a

Eliminate unused Types

Author: CharliePoole

src/NUnitEngine/nunit.engine.core.tests/Internal/Backports/PathTests.cs

@@ -8,9 +8,11 @@ namespace NUnit.Engine.Communication.Transports
     /// The ITestAgentTransport interface is implemented by a
     /// class providing communication for a TestAgent.
     /// </summary>
-    public interface ITestAgentTransport : ITransport
+    public interface ITestAgentTransport
     {
         TestAgent Agent { get; }
         ITestEngineRunner CreateRunner(TestPackage package);
+        bool Start();
+        void Stop();
     }
 }

src/NUnitEngine/nunit.engine.core.tests/Internal/Backports/TupleTests.cs

@@ -9,7 +9,9 @@
 using NUnit.Engine.Internal.FileSystemAccess;
 using NUnit.Engine.Internal.FileSystemAccess.Default;
 using System.Linq;
+#if NET462
 using NUnit.Engine.Internal.Backports;
+#endif
 
 namespace NUnit.Engine.Extensibility
 {