mgmt: loosened coupling between FibManager and InternalFace

Implemented InternalFace.setInterestFilter to loosen
coupling

refs: #1138

Change-Id: Ie58daed35bc3613398c8d3fc1de8b796e29907b8
diff --git a/daemon/mgmt/internal-face.hpp b/daemon/mgmt/internal-face.hpp
index 4b16cc1..217d631 100644
--- a/daemon/mgmt/internal-face.hpp
+++ b/daemon/mgmt/internal-face.hpp
@@ -18,8 +18,7 @@
 {
 public:
 
-  explicit
-  InternalFace(FibManager& manager);
+  InternalFace();
 
   // Overridden Face methods for forwarder
 
@@ -47,8 +46,6 @@
   // onConfig(ConfigFile::Node section, bool isDryRun);
 
   std::map<Name, OnInterest> m_interestFilters;
-  FibManager& m_fibManager; // for mock only
-
 };
 
 } // namespace nfd