common: remove DECL_FINAL/OVERRIDE macros; use C++11 keywords directly

Change-Id: I71a148b0df7c95387b2caa8e2b9fe93b03ca2399
Refs: #3599
diff --git a/tests/daemon/fw/forwarder.t.cpp b/tests/daemon/fw/forwarder.t.cpp
index 45014ff..310139f 100644
--- a/tests/daemon/fw/forwarder.t.cpp
+++ b/tests/daemon/fw/forwarder.t.cpp
@@ -133,14 +133,14 @@
   }
 
   virtual void
-  onDataUnsolicited(Face& inFace, const Data& data) DECL_OVERRIDE
+  onDataUnsolicited(Face& inFace, const Data& data) override
   {
     ++onDataUnsolicited_count;
   }
 
 protected:
   virtual void
-  dispatchToStrategy(shared_ptr<pit::Entry> pitEntry, function<void(fw::Strategy*)> f) DECL_OVERRIDE
+  dispatchToStrategy(shared_ptr<pit::Entry> pitEntry, function<void(fw::Strategy*)> f) override
   {
     ++dispatchToStrategy_count;
   }