Fix bug in secondary kinematic class

src/THcSecondaryKine.cxx

@@ -145,8 +145,7 @@ Int_t THcSecondaryKine::Process( const THaEvData& )
   if( !IsOK() ) return -1;
 
   //Get secondary particle mass
-
-  fMX = fHC_Spectro->GetParticleMass();
+  fMX = dynamic_cast <THcHallCSpectrometer*> (fSpectro)->GetParticleMass();
 
   // Tracking information from the secondary spectrometer
   THaTrackInfo* trkifo = fSpectro->GetTrackInfo();

src/THcSecondaryKine.h

@@ -106,7 +106,6 @@ public:
 
   TString            fSpectroName;  // Name of spectrometer for secondary particle
   THaTrackingModule* fSpectro;      // Pointer to spectrometer object
-  THcHallCSpectrometer* fHC_Spectro;
   TString            fPrimaryName;  // Name of module for primary interaction kinematics
   THcPrimaryKine*    fPrimary;      // Pointer to primary kinematics module