docs: ConverterSet remove(Converter converter, Converter[] removed) {
          Converter[] converters = iConverters;
          int length = converters.length;
  
          for (int i=0; i<length; i++) {
              if (converter.equals(converters[i])) {
                  return remove(i, removed);
              }
          }
  
          // Not found.
          if (removed != null) {
              removed[0] = null;
          }
          return this;
      }