Improve and simplify code with modern C++ features

Change-Id: I83bf5513c2a1f90ba5a59e93c473306864b27d94
diff --git a/daemon/face/face-system.cpp b/daemon/face/face-system.cpp
index 1d2db37..872efef 100644
--- a/daemon/face/face-system.cpp
+++ b/daemon/face/face-system.cpp
@@ -47,7 +47,7 @@
 ProtocolFactoryCtorParams
 FaceSystem::makePFCtorParams()
 {
-  auto addFace = bind(&FaceTable::add, &m_faceTable, _1);
+  auto addFace = [&ft = m_faceTable] (auto face) { ft.add(std::move(face)); };
   return {addFace, m_netmon};
 }