code: public ItemRequest<Section> delete(String section) {
      
          String path = String.format("/sections/%s", section);
          return new ItemRequest<Section>(this, Section.class, path, "DELETE");
      }
docs: A specific, existing section can be deleted by making a DELETE request
  on the URL for that section.
  
  Note that sections must be empty to be deleted.
  
  The last remaining section in a board view cannot be deleted.
  
  Returns an empty data block.
  
  @param  section The section to delete.
  @return Request object