code: def remove_showcase(self, showcase):
          # type: (Union[hdx.data.showcase.Showcase,Dict,str]) -> None
          
          dataset_showcase = self._get_dataset_showcase_dict(showcase)
          showcase = hdx.data.showcase.Showcase({'id': dataset_showcase['showcase_id']}, configuration=self.configuration)
          showcase._write_to_hdx('disassociate', dataset_showcase, 'package_id')
docs: Remove dataset from showcase
  
          Args:
              showcase (Union[Showcase,Dict,str]): Either a showcase id string or showcase metadata from a Showcase object or dictionary
  
          Returns:
              None