fw: FaceTable signals use Face& instead of shared_ptr

refs #3205

Change-Id: I53ecd0d6a13d379eb1dfb872041bdde8501f05e7
diff --git a/daemon/fw/access-strategy.hpp b/daemon/fw/access-strategy.hpp
index ca7a2e3..02a7965 100644
--- a/daemon/fw/access-strategy.hpp
+++ b/daemon/fw/access-strategy.hpp
@@ -123,7 +123,7 @@
   typedef std::unordered_map<FaceId, FaceInfo> FaceInfoTable;
 
   void
-  removeFaceInfo(shared_ptr<Face> face);
+  removeFaceInfo(const Face& face);
 
 private: // forwarding procedures
   void