face: face refactoring completion

* delete old Face
* rename LpFace as Face
* eliminate LpFaceWrapper and use new Face

refs #3172

Change-Id: I08c3a5dfb4cc1b9834b30cccd9ab634535d0608c
diff --git a/daemon/face/udp-channel.hpp b/daemon/face/udp-channel.hpp
index a24d1ec..a2506d4 100644
--- a/daemon/face/udp-channel.hpp
+++ b/daemon/face/udp-channel.hpp
@@ -27,7 +27,6 @@
 #define NFD_DAEMON_FACE_UDP_CHANNEL_HPP
 
 #include "channel.hpp"
-#include "lp-face-wrapper.hpp"
 
 namespace nfd {
 
@@ -105,11 +104,11 @@
                 const FaceCreatedCallback& onFaceCreated,
                 const FaceCreationFailedCallback& onReceiveFailed);
 
-  std::pair<bool, shared_ptr<face::LpFaceWrapper>>
+  std::pair<bool, shared_ptr<Face>>
   createFace(const udp::Endpoint& remoteEndpoint, ndn::nfd::FacePersistency persistency);
 
 private:
-  std::map<udp::Endpoint, shared_ptr<face::LpFaceWrapper>> m_channelFaces;
+  std::map<udp::Endpoint, shared_ptr<Face>> m_channelFaces;
 
   udp::Endpoint m_localEndpoint;