message: Remove the Default instance of RecordTypeGen
  Summary: Was never used.
diff: @@ -65,7 +65,7 @@ pub struct FieldGen<V> {
  }
  /// The result of `record()`, being the type of records.
  -#[derive(Clone, Default, Debug)]
  +#[derive(Clone, Debug)]
  pub struct RecordTypeGen<V> {
  /// The name of this type, e.g. MyRecord
  typ: Option<String>,
  