message: Update column_type_traits.hpp
  Remove stuff added by mistake
diff: @@ -166,7 +166,6 @@ struct ColumnTypeTraits<Timestamp> {
  template <>
  struct ColumnTypeTraits<StringData> {
  using cluster_leaf_type = ArrayString;
  - using no_sum_type = double;
  static const DataType id = type_String;
  static const ColumnType column_id = col_type_String;
  };
  