mgmt: merge ManagerBase with NfdManagerBase

Refs: #4528
Change-Id: I2ecb4af68927157a9eafc269399855cff192bb54
diff --git a/daemon/mgmt/face-manager.cpp b/daemon/mgmt/face-manager.cpp
index 2299927..b7b22f2 100644
--- a/daemon/mgmt/face-manager.cpp
+++ b/daemon/mgmt/face-manager.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2018,  Regents of the University of California,
+ * Copyright (c) 2014-2019,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -41,9 +41,8 @@
 NFD_LOG_INIT(FaceManager);
 
 FaceManager::FaceManager(FaceSystem& faceSystem,
-                         Dispatcher& dispatcher,
-                         CommandAuthenticator& authenticator)
-  : NfdManagerBase(dispatcher, authenticator, "faces")
+                         Dispatcher& dispatcher, CommandAuthenticator& authenticator)
+  : ManagerBase("faces", dispatcher, authenticator)
   , m_faceSystem(faceSystem)
   , m_faceTable(faceSystem.getFaceTable())
 {