Index: dam engine/trunk/src/Deltares.DamEngine.Interface.Tests/PipingBlighTests.cs
===================================================================
diff -u -r642 -r659
--- dam engine/trunk/src/Deltares.DamEngine.Interface.Tests/PipingBlighTests.cs	(.../PipingBlighTests.cs)	(revision 642)
+++ dam engine/trunk/src/Deltares.DamEngine.Interface.Tests/PipingBlighTests.cs	(.../PipingBlighTests.cs)	(revision 659)
@@ -19,7 +19,6 @@
 // Stichting Deltares and remain full property of Stichting Deltares at all times.
 // All rights reserved.
 
-using System;
 using System.IO;
 using Deltares.DamEngine.Io;
 using NUnit.Framework;