Remove mcCollectionType

MuonSpectrometer/MuonPhaseII/Event/xAOD/xAODMuonSimHit/Root/xAODMuonSimHitAuxContainer_v1.cxx

@@ -28,7 +28,6 @@ MuonSimHitAuxContainer_v1::MuonSimHitAuxContainer_v1()
     SIM_AUXVARIABLE(kineticEnergy);    
     SIM_AUXVARIABLE(mcEventIndex);
     SIM_AUXVARIABLE(mcBarcode);
-    SIM_AUXVARIABLE(mcCollectionType);
 }
 }  // namespace xAOD
 #undef SIM_AUXVARIABLE
\ No newline at end of file

MuonSpectrometer/MuonPhaseII/Event/xAOD/xAODMuonSimHit/Root/xAODMuonSimHit_V1.cxx

 /*
-   Copyright (C) 2002-2023 CERN for the benefit of the ATLAS collaboration
+   Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
 */
 
 // EDM include(s):
@@ -15,7 +15,6 @@ namespace {
 
    static const SG::AuxElement::Accessor<unsigned short> acc_mcEventIndex{preFixStr+"mcEventIndex"};
    static const SG::AuxElement::Accessor<unsigned int> acc_mcBarcode{preFixStr+"mcBarcode"};
-   static const SG::AuxElement::Accessor<char> acc_mcCollectionType{preFixStr+"mcCollectionType"};
 }
 
 #define IMPLEMENT_SETTER_GETTER( DTYPE, GETTER, SETTER)                          \
@@ -80,7 +79,6 @@ void MuonSimHit_v1::setGenParticleLink(const HepMcParticleLink& link) {
    m_hepMCLink.release();
    acc_mcEventIndex(*this) = link.eventIndex();
    acc_mcBarcode(*this) = link.barcode();
-   acc_mcCollectionType(*this) = 'a'; // Hard-coding as this only ever had a single value in production
 }
 
 }

MuonSpectrometer/MuonPhaseII/Event/xAOD/xAODMuonSimHit/xAODMuonSimHit/versions/MuonSimHitAuxContainer_v1.h

@@ -34,8 +34,6 @@ class MuonSimHitAuxContainer_v1 : public AuxContainerBase {
     /// Information needed to save the HEPMC particle link
     std::vector<unsigned short> mcEventIndex{};
     std::vector<unsigned int>  mcBarcode{};
-    std::vector<char>           mcCollectionType{};
-
     /// @}
 };
 }  // namespace xAOD