build: switch to C++14
Change-Id: I7a32dad01e74ef5b7c5f37a5464d0b17a7882c61
Refs: #3076
diff --git a/core/common.hpp b/core/common.hpp
index 156d59d..b0fc450 100644
--- a/core/common.hpp
+++ b/core/common.hpp
@@ -46,10 +46,10 @@
#include <cstdint>
#include <functional>
#include <limits>
-#include <list>
#include <map>
#include <memory>
#include <set>
+#include <stdexcept>
#include <string>
#include <unordered_map>
#include <unordered_set>
@@ -84,8 +84,7 @@
using std::unique_ptr;
using std::weak_ptr;
using std::make_shared;
-using ndn::make_unique;
-using std::enable_shared_from_this;
+using std::make_unique;
using std::static_pointer_cast;
using std::dynamic_pointer_cast;