In addition the obsolete lines in Geometry/MuonCommonData/data/PhaseII/v2/muonNumbering.xml must be deleted: https://github.com/cms-sw/cmssw/blob/CMSSW_6_2_X_SLHC/Geometry/MuonCommonData/data/PhaseII/v2/muonNumbering.xml#L33
https://github.com/cms-sw/cmssw/blob/CMSSW_6_2_X_SLHC/Geometry/MuonCommonData/data/PhaseII/v2/muonNumbering.xml#L73