Index: src/Common/SharpMap.Api/IMap.cs
===================================================================
diff -u -r8f6ae890fed8e8eae3a32f9c0498a10f82e0ddf9 -rd505e5545e25721aee2dfb60bc2a27ab1878a0ad
--- src/Common/SharpMap.Api/IMap.cs	(.../IMap.cs)	(revision 8f6ae890fed8e8eae3a32f9c0498a10f82e0ddf9)
+++ src/Common/SharpMap.Api/IMap.cs	(.../IMap.cs)	(revision d505e5545e25721aee2dfb60bc2a27ab1878a0ad)
@@ -4,7 +4,6 @@
 using System.Drawing.Drawing2D;
 using DelftTools.Utils;
 using DelftTools.Utils.Collections.Generic;
-using DelftTools.Utils.Data;
 using GeoAPI.CoordinateSystems;
 using GeoAPI.Extensions.Feature;
 using GeoAPI.Geometries;
@@ -13,7 +12,7 @@
 
 namespace SharpMap.Api
 {
-    public interface IMap : IUnique<long>, INameable, ICloneable
+    public interface IMap : INameable, ICloneable
     {
         /// <summary>
         /// Event fired when the zoomlevel or the center point has been changed