utils: Remove unnecessary include

Change-Id: If98594fc4ce85eac76d736bd132600b54b30721b
diff --git a/utils/topology/annotated-topology-reader.cpp b/utils/topology/annotated-topology-reader.cpp
index 2874616..6a47455 100644
--- a/utils/topology/annotated-topology-reader.cpp
+++ b/utils/topology/annotated-topology-reader.cpp
@@ -43,7 +43,6 @@
 #include "ns3/double.h"
 
 #include "model/ndn-l3-protocol.hpp"
-#include "model/ndn-net-device-face.hpp"
 
 #include <boost/foreach.hpp>
 #include <boost/lexical_cast.hpp>