Index: src/Common/GeoAPI.Extensions/Feature/IFeature.cs
===================================================================
diff -u -r8f6ae890fed8e8eae3a32f9c0498a10f82e0ddf9 -r0153333b695581ca406c286a27467bc30d7aa5f8
--- src/Common/GeoAPI.Extensions/Feature/IFeature.cs	(.../IFeature.cs)	(revision 8f6ae890fed8e8eae3a32f9c0498a10f82e0ddf9)
+++ src/Common/GeoAPI.Extensions/Feature/IFeature.cs	(.../IFeature.cs)	(revision 0153333b695581ca406c286a27467bc30d7aa5f8)
@@ -1,10 +1,9 @@
 using System;
-using DelftTools.Utils.Data;
 using GeoAPI.Geometries;
 
 namespace GeoAPI.Extensions.Feature
 {
-    public interface IFeature : IUnique<long>, ICloneable
+    public interface IFeature : ICloneable
     {
         IGeometry Geometry { get; set; }