table: don't use shared_ptr in FIB

refs #3164

Change-Id: I5b5eb47d60f6bf5b6389c32ac840f793767e4334
diff --git a/daemon/fw/best-route-strategy.cpp b/daemon/fw/best-route-strategy.cpp
index bae5262..b97afca 100644
--- a/daemon/fw/best-route-strategy.cpp
+++ b/daemon/fw/best-route-strategy.cpp
@@ -54,14 +54,14 @@
   const fib::Entry& fibEntry = this->lookupFib(*pitEntry);
   const fib::NextHopList& nexthops = fibEntry.getNextHops();
   fib::NextHopList::const_iterator it = std::find_if(nexthops.begin(), nexthops.end(),
-    [&pitEntry] (const fib::NextHop& nexthop) { return canForwardToLegacy(*pitEntry, *nexthop.getFace()); });
+    [&pitEntry] (const fib::NextHop& nexthop) { return canForwardToLegacy(*pitEntry, nexthop.getFace()); });
 
   if (it == nexthops.end()) {
     this->rejectPendingInterest(pitEntry);
     return;
   }
 
-  shared_ptr<Face> outFace = it->getFace();
+  Face& outFace = it->getFace();
   this->sendInterest(pitEntry, outFace);
 }