Use ndn-cxx logging facility

refs: #3949

Change-Id: I5d0931c3576c88e0c2fa52bdd0a716946400e0bc
diff --git a/src/name-prefix-list.cpp b/src/name-prefix-list.cpp
index 486e350..26f54d4 100644
--- a/src/name-prefix-list.cpp
+++ b/src/name-prefix-list.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2014-2017,  The University of Memphis,
+ * Copyright (c) 2014-2018,  The University of Memphis,
  *                           Regents of the University of California,
  *                           Arizona Board of Regents.
  *
@@ -21,18 +21,13 @@
 
 #include "name-prefix-list.hpp"
 #include "common.hpp"
-#include "logger.hpp"
 
 #include <iostream>
 #include <algorithm>
 
 namespace nlsr {
 
-INIT_LOGGER("NamePrefixList");
-
-NamePrefixList::NamePrefixList()
-{
-}
+NamePrefixList::NamePrefixList() = default;
 
 NamePrefixList::NamePrefixList(const std::initializer_list<ndn::Name>& names)
 {