Remove documentation particles from truth record

Some duplictated "documentation" particles with slightly different parameters.

Trigger/TrigAnalysis/TrigInDetAnalysisUtils/src/TrigTrackSelector.cxx

@@ -4,7+4,7 @@
  **     @author  mark sutton
  **     @date    Sun  2 Nov 2014 11:10:06 CET 
  **
  **     Copyright (C) 2002-2019 CERN for the benefit of the ATLAS collaboration
  **/
 
 
@@ -341,7+341,7 @@
 
   if ( track ) { 
         
+    // check it is a final state particle - documentation particles have status() == 3     
     if ( track->status() != 1 ) return false;
 
     /// lazy just to avoid a find-replace of measPer to track
@@ -401,8 +402,6 @@ bool TrigTrackSelector::selectTrack( const xAOD::TruthParticle* track ) {
     if ( (  track->hasProdVtx() && rp<=inner_radius ) && 
 	 ( !track->hasDecayVtx() || rd>outer_radius ) ) final_state = true; 
       
-    //    if ( track->status() == 3 ) final_state = false;         /// check its not a documentation particle    
-
     if ( !final_state ) return false; 
     
     double deta = 0;