src: Remove unnecessary uses of boost::cref in make_shared and replace boost::cref/boost::ref with just cref/ref

In some cases, due to argument-dependent lookup, it is necessary to use
ndn::ref, instead of just ref.

Change-Id: I682180a007609535855f77511b49622154ad4f11
Refs: #1591
diff --git a/daemon/fw/forwarder.cpp b/daemon/fw/forwarder.cpp
index 6b06d10..4c8aa36 100644
--- a/daemon/fw/forwarder.cpp
+++ b/daemon/fw/forwarder.cpp
@@ -105,7 +105,7 @@
 
   // dispatch to strategy
   this->dispatchToStrategy(pitEntry, bind(&Strategy::afterReceiveInterest, _1,
-    boost::cref(inFace), boost::cref(interest), fibEntry, pitEntry));
+                                          cref(inFace), cref(interest), fibEntry, pitEntry));
 }
 
 void
@@ -191,7 +191,7 @@
 
   // invoke PIT unsatisfied callback
   this->dispatchToStrategy(pitEntry, bind(&Strategy::beforeExpirePendingInterest, _1,
-    pitEntry));
+                                          pitEntry));
 
   // PIT delete
   m_pit.erase(pitEntry);
@@ -254,7 +254,7 @@
 
     // invoke PIT satisfy callback
     this->dispatchToStrategy(pitEntry, bind(&Strategy::beforeSatisfyPendingInterest, _1,
-      pitEntry, boost::cref(inFace), boost::cref(data)));
+                                            pitEntry, cref(inFace), cref(data)));
   }
 
   // foreach pending downstream