core: slim down `common.hpp`

Change-Id: I875c35147edd2261fbaa24e809c170d5cd9b94d3
diff --git a/daemon/table/measurements-entry.hpp b/daemon/table/measurements-entry.hpp
index 84624a2..09528d4 100644
--- a/daemon/table/measurements-entry.hpp
+++ b/daemon/table/measurements-entry.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,
@@ -28,6 +28,8 @@
 
 #include "strategy-info-host.hpp"
 
+#include <ndn-cxx/util/scheduler.hpp>
+
 namespace nfd::name_tree {
 class Entry;
 } // namespace nfd::name_tree
@@ -58,7 +60,7 @@
 private:
   Name m_name;
   time::steady_clock::time_point m_expiry = time::steady_clock::time_point::min();
-  scheduler::EventId m_cleanup;
+  ndn::scheduler::EventId m_cleanup;
 
   name_tree::Entry* m_nameTreeEntry = nullptr;