model: Small modification in BestRoute strategy

There is no real need to call parent's (green-yellow-red strategy's)
DoPropagateInterest method, since everything what it is doing is already
incorporated in the logic of the BestRoute strategy.

closes #32
diff --git a/model/fw/best-route.cc b/model/fw/best-route.cc
index 59f8720..21a6b57 100644
--- a/model/fw/best-route.cc
+++ b/model/fw/best-route.cc
@@ -71,10 +71,13 @@
 {
   NS_LOG_FUNCTION (this << header->GetName ());
 
-  // Try to work out with just green faces
-  bool greenOk = super::DoPropagateInterest (inFace, header, origPacket, pitEntry);
-  if (greenOk)
-    return true;
+  // No real need to call parent's (green-yellow-red's strategy) method, since it is incorporated
+  // in the logic of the BestRoute strategy
+  //
+  // // Try to work out with just green faces
+  // bool greenOk = super::DoPropagateInterest (inFace, header, origPacket, pitEntry);
+  // if (greenOk)
+  //   return true;
 
   int propagatedCount = 0;