core: slim down `common.hpp`

Change-Id: I875c35147edd2261fbaa24e809c170d5cd9b94d3
diff --git a/daemon/fw/access-strategy.hpp b/daemon/fw/access-strategy.hpp
index 194c9ca..324fea8 100644
--- a/daemon/fw/access-strategy.hpp
+++ b/daemon/fw/access-strategy.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2022,  Regents of the University of California,
+ * Copyright (c) 2014-2024,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -80,7 +80,7 @@
     }
 
   public:
-    scheduler::ScopedEventId rtoTimer;
+    ndn::scheduler::ScopedEventId rtoTimer;
   };
 
   /** \brief StrategyInfo in measurements table.