face: eliminate Transport::Packet wrapper type

Refs: #4843
Change-Id: I5977be55e8bdac33c989e3b8523fea764f304c37
diff --git a/daemon/face/null-link-service.hpp b/daemon/face/null-link-service.hpp
index d31304b..3823d9a 100644
--- a/daemon/face/null-link-service.hpp
+++ b/daemon/face/null-link-service.hpp
@@ -52,7 +52,7 @@
   }
 
   void
-  doReceivePacket(Transport::Packet&&) final
+  doReceivePacket(const Block&, const EndpointId&) final
   {
   }
 };