message: fix: remove unused data member
diff: @@ -98,7 +98,6 @@ class AliMagF : public TVirtualMagField
  Double_t fFactorDip; // Multiplicative factor for dipole
  Double_t fMax; // Max Field as indicated in Geant
  Bool_t fDipoleOFF; // Dipole ON/OFF flag
  - Bool_t fAllowFastField; // allow optional fast field param
  //
  Double_t fQuadGradient; // Gradient field for inner triplet quadrupoles
  Double_t fDipoleField; // Field value for D1 and D2 dipoles
  