core: move nfd-specific files to daemon/

Refs: #4922
Change-Id: I2243dbb87c63f9cbaf7d7051d7a0d4bca2f9fdb5
diff --git a/daemon/face/transport.hpp b/daemon/face/transport.hpp
index 8bbfe86..aaea75a 100644
--- a/daemon/face/transport.hpp
+++ b/daemon/face/transport.hpp
@@ -26,8 +26,8 @@
 #ifndef NFD_DAEMON_FACE_TRANSPORT_HPP
 #define NFD_DAEMON_FACE_TRANSPORT_HPP
 
-#include "core/counter.hpp"
 #include "face-log.hpp"
+#include "common/counter.hpp"
 
 #include <ndn-cxx/encoding/nfd-constants.hpp>