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/fw/strategy.cpp b/daemon/fw/strategy.cpp
index 7b0504e..00fe82f 100644
--- a/daemon/fw/strategy.cpp
+++ b/daemon/fw/strategy.cpp
@@ -33,8 +33,8 @@
 NFD_LOG_INIT("Strategy");
 
 Strategy::Strategy(Forwarder& forwarder, const Name& name)
-  : afterAddFace(forwarder.getFaceTable().onAdd)
-  , beforeRemoveFace(forwarder.getFaceTable().onRemove)
+  : afterAddFace(forwarder.getFaceTable().afterAdd)
+  , beforeRemoveFace(forwarder.getFaceTable().beforeRemove)
   , m_name(name)
   , m_forwarder(forwarder)
   , m_measurements(m_forwarder.getMeasurements(),