Correction of examples to reflect latest changes in CcnxStackHelper API
diff --git a/examples/sprint-topology.cc b/examples/sprint-topology.cc
index 6bcc2bf..526858b 100644
--- a/examples/sprint-topology.cc
+++ b/examples/sprint-topology.cc
@@ -28,7 +28,6 @@
 
 #include <iostream>
 #include <sstream>
-#include "ns3/visualizer-module.h"
 #include "ns3/rocketfuel-topology-reader.h"
 
 
@@ -84,4 +83,4 @@
     Simulator::Destroy ();
     NS_LOG_INFO ("Done.");
     return 0;
-}
\ No newline at end of file
+}