message: AliFemtoCutAttrPairV0 - Update destructors
diff: @@ -29,7 +29,7 @@ struct AddPairCutV0Attr : public T1, public T2 {
  T2::FillConfiguration(cfg);
  }
  - virtual ~AddPairCutV0Attr() = 0;
  + virtual ~AddPairCutV0Attr() {}
  };
  @@ -50,7 +50,7 @@ struct PairCutV0AttrPt {
  cfg.insert("pt_range", pt_range);
  }
  - virtual ~PairCutV0AttrPt() = 0;
  + virtual ~PairCutV0AttrPt() {}
  };
  /// Simple cut removing pairs sharing a daugther track
  @@ -65,7 +65,7 @@ struct PairCutV0SharedDaughters {
  void FillConfiguration(AliFemtoConfigObject &) const
  { }
  - virtual ~PairCutV0SharedDaughters() = 0;
  + virtual ~PairCutV0SharedDaughters() {}
  };
  @@ -95,7 +95,7 @@ struct PairCutV0MinEntranceSep {
  cfg.insert("min_entrance_sep", min_entrance_sep);
  }
  - virtual ~PairCutV0MinEntranceSep() = 0;
  + virtual ~PairCutV0MinEntranceSep() {}
  };
  /// \class PairCutV0AvgSep
  @@ -168,7 +168,7 @@ struct PairCutV0AvgSep {
  return counter==0 ? 0.0 : sep / counter;
  }
  - virtual ~PairCutV0AvgSep() = 0;
  + virtual ~PairCutV0AvgSep() {}
  };
  