Fix compilation issue

Tracking/Acts/FaserActsKalmanFilter/src/CKF2.cxx

@@ -87,7 +87,8 @@ StatusCode CKF2::execute() {
   const EventContext& ctx = Gaudi::Hive::currentContext();
   m_numberOfEvents++;
 
-  SG::ReadHandle<xAOD::EventInfo> eventInfo { m_eventInfoKey, ctx };
+  // Should work, but won't compile
+  // SG::ReadHandle<xAOD::EventInfo> eventInfo { m_eventInfoKey, ctx };
 
   SG::WriteHandle trackContainer{m_trackCollection, ctx};
   std::unique_ptr<TrackCollection> outputTracks = std::make_unique<TrackCollection>();