table: simplify FIB with C++11 features

refs #2100

Change-Id: I293044ae321b9a1d7c07a34f631c49c791c7856d
diff --git a/daemon/table/fib-nexthop.cpp b/daemon/table/fib-nexthop.cpp
index 7f480a8..235fc79 100644
--- a/daemon/table/fib-nexthop.cpp
+++ b/daemon/table/fib-nexthop.cpp
@@ -1,11 +1,12 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2014  Regents of the University of California,
- *                     Arizona Board of Regents,
- *                     Colorado State University,
- *                     University Pierre & Marie Curie, Sorbonne University,
- *                     Washington University in St. Louis,
- *                     Beijing Institute of Technology
+ * Copyright (c) 2014,  Regents of the University of California,
+ *                      Arizona Board of Regents,
+ *                      Colorado State University,
+ *                      University Pierre & Marie Curie, Sorbonne University,
+ *                      Washington University in St. Louis,
+ *                      Beijing Institute of Technology,
+ *                      The University of Memphis
  *
  * This file is part of NFD (Named Data Networking Forwarding Daemon).
  * See AUTHORS.md for complete list of NFD authors and contributors.
@@ -20,7 +21,7 @@
  *
  * You should have received a copy of the GNU General Public License along with
  * NFD, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
- **/
+ */
 
 #include "fib-nexthop.hpp"
 
@@ -28,16 +29,12 @@
 namespace fib {
 
 NextHop::NextHop(shared_ptr<Face> face)
-  : m_face(face), m_cost(0)
+  : m_face(face)
+  , m_cost(0)
 {
 }
 
-NextHop::NextHop(const NextHop& other)
-  : m_face(other.m_face), m_cost(other.m_cost)
-{
-}
-
-shared_ptr<Face>
+const shared_ptr<Face>&
 NextHop::getFace() const
 {
   return m_face;