face: remove pointless method UdpFace::handleFirstReceive

Simply call DatagramFace::receiveDatagram directly.

Change-Id: Icec976fb9f4a008d08ece56c28ac652ea615bc76
diff --git a/daemon/face/tcp-face.hpp b/daemon/face/tcp-face.hpp
index a522ac4..3eddde1 100644
--- a/daemon/face/tcp-face.hpp
+++ b/daemon/face/tcp-face.hpp
@@ -36,8 +36,8 @@
 class TcpFace : public StreamFace<boost::asio::ip::tcp>
 {
 public:
-  explicit
-  TcpFace(const shared_ptr<protocol::socket>& socket, bool isOnDemand);
+  TcpFace(const shared_ptr<protocol::socket>& socket,
+          bool isOnDemand);
 };
 
 //
@@ -50,8 +50,8 @@
 class TcpLocalFace : public StreamFace<boost::asio::ip::tcp, LocalFace>
 {
 public:
-  explicit
-  TcpLocalFace(const shared_ptr<protocol::socket>& socket, bool isOnDemand);
+  TcpLocalFace(const shared_ptr<protocol::socket>& socket,
+               bool isOnDemand);
 };