Revert use of memory pool in TrackEventFitter

Tr/TrackFitter/src/TrackEventFitter.cpp

@@ -25,7 +25,7 @@
 
 namespace {
   template <typename TrackListType>
-  using MyBase = Gaudi::Functional::Transformer<LHCb::Tracks( const EventContext&, const TrackListType& ),
+  using MyBase = Gaudi::Functional::Transformer<LHCb::Tracks( const TrackListType& ),
                                                 Gaudi::Functional::Traits::BaseClass_t<FixTESPath<Gaudi::Algorithm>>>;
 }
 
@@ -42,11 +42,10 @@ public:
 
   /// Standard constructor
   TrackEventFitter( const std::string& name, ISvcLocator* pSvcLocator )
-      : MyBase<TrackListType>( name, pSvcLocator, //
-                               {"TracksInContainer", LHCb::TrackLocation::Default},
+      : MyBase<TrackListType>( name, pSvcLocator, {"TracksInContainer", LHCb::TrackLocation::Default},
                                {"TracksOutContainer", LHCb::TrackLocation::Default} ) {}
 
-  LHCb::Tracks operator()( const EventContext&, const TrackListType& ) const override;
+  LHCb::Tracks operator()( const TrackListType& ) const override;
 
 private:
   /// interface to tracks fitter tool
@@ -77,18 +76,17 @@ DECLARE_COMPONENT_WITH_ID( TrackEventFitter<LHCb::Track::Selection>, "SharedTrac
 //=============================================================================
 
 template <typename TrackListType>
-LHCb::Tracks TrackEventFitter<TrackListType>::operator()( const EventContext&  evtCtx,
-                                                          const TrackListType& tracksCont ) const {
+LHCb::Tracks TrackEventFitter<TrackListType>::operator()( const TrackListType& tracksCont ) const {
 
   if ( msgLevel( MSG::DEBUG ) ) debug() << "==> Execute" << endmsg;
+
   LHCb::Tracks retTracks;
   retTracks.reserve( tracksCont.size() );
 
   // Loop over the tracks and fit them
   // ---------------------------------
-  unsigned int                              nFitFail  = 0;
-  unsigned int                              nBadInput = 0;
-  std::vector<std::unique_ptr<LHCb::Track>> tracks_to_fit;
+
+  unsigned int nFitFail{0}, nBadInput{0};
 
   std::vector<LHCb::Track> tracks{};
   tracks.reserve( tracksCont.size() );
@@ -101,10 +99,9 @@ LHCb::Tracks TrackEventFitter<TrackListType>::operator()( const EventContext&  e
     }
   } );
 
-  auto memResource = LHCb::getMemResource( evtCtx );
-  using FitTk      = std::reference_wrapper<LHCb::Track>;
-  std::vector<FitTk, LHCb::Allocators::EventLocal<FitTk>>   fittingTracks{memResource};
-  std::vector<double, LHCb::Allocators::EventLocal<double>> qopBeforeVector{memResource};
+  using FitTk = std::reference_wrapper<LHCb::Track>;
+  std::vector<FitTk>  fittingTracks;
+  std::vector<double> qopBeforeVector;
   fittingTracks.reserve( tracksCont.size() );
   qopBeforeVector.reserve( tracksCont.size() );