TRD track refit should not shift time in case of pileup

Author: martenole

Detectors/TRD/workflow/src/TRDGlobalTrackingSpec.cxx

@@ -525,9 +525,6 @@ bool TRDGlobalTracking::refitITSTPCTRDTrack(TrackTRD& trk, float timeTRD, o2::gl
   int nCl = -1, clEntry = -1, nClRefit = 0, clRefs[14];
   float chi2Out = 0, timeZErr = 0.;
   bool pileUpOn = trk.hasPileUpInfo(); // distance to farthest collision within the pileup integration time is set
-  if (pileUpOn) {
-    timeTRD += trk.getPileUpTimeShiftMUS(); // shift to average pileup position
-  }
   auto geom = o2::its::GeometryTGeo::Instance();
   auto matCorr = o2::base::Propagator::MatCorrType(mRec->GetParam().rec.trd.matCorrType);
   if (detRefs[GTrackID::ITS].isIndexSet()) { // this is ITS track
@@ -656,10 +653,7 @@ bool TRDGlobalTracking::refitTPCTRDTrack(TrackTRD& trk, float timeTRD, o2::globa
   auto detRefs = recoCont->getSingleDetectorRefs(trk.getRefGlobalTrackId());
   outerParam = trk;
   float chi2Out = 0, timeZErr = 0.;
-  bool pileUpOn = trk.hasPileUpInfo(); // distance to farthest collision within the pileup integration time is set
-  if (pileUpOn) {
-    timeTRD += trk.getPileUpTimeShiftMUS(); // shift to average pileup position
-  }
+  bool pileUpOn = trk.hasPileUpInfo();                                                                                                                                                           // distance to farthest collision within the pileup integration time is set
   int retVal = mTPCRefitter->RefitTrackAsTrackParCov(outerParam, mTPCTracksArray[detRefs[GTrackID::TPC]].getClusterRef(), (timeTRD + mTPCTDriftOffset) * mTPCTBinMUSInv, &chi2Out, true, false); // outward refit
   if (retVal < 0) {
     LOG(debug) << "TPC refit outwards failed";