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/nfd.cpp b/daemon/nfd.cpp
index bcc5926..5d9ce22 100644
--- a/daemon/nfd.cpp
+++ b/daemon/nfd.cpp
@@ -91,8 +91,8 @@
   initializeManagement();
 
   FaceTable& faceTable = m_forwarder->getFaceTable();
-  faceTable.addReserved(face::makeNullFace(), FACEID_NULL);
-  faceTable.addReserved(face::makeNullFace(FaceUri("contentstore://")), FACEID_CONTENT_STORE);
+  faceTable.addReserved(face::makeNullFace(), face::FACEID_NULL);
+  faceTable.addReserved(face::makeNullFace(FaceUri("contentstore://")), face::FACEID_CONTENT_STORE);
 
   PrivilegeHelper::drop();
 
@@ -145,7 +145,7 @@
 Nfd::initializeManagement()
 {
   std::tie(m_internalFace, m_internalClientFace) = face::makeInternalFace(m_keyChain);
-  m_forwarder->getFaceTable().addReserved(m_internalFace, FACEID_INTERNAL_FACE);
+  m_forwarder->getFaceTable().addReserved(m_internalFace, face::FACEID_INTERNAL_FACE);
   m_dispatcher.reset(new ndn::mgmt::Dispatcher(*m_internalClientFace, m_keyChain));
 
   m_validator.reset(new CommandValidator());