code: def delete_entity(project_id, entity_type_id, entity_value):
      
      import dialogflow_v2 as dialogflow
      entity_types_client = dialogflow.EntityTypesClient()
  
      entity_type_path = entity_types_client.entity_type_path(
          project_id, entity_type_id)
  
      entity_types_client.batch_delete_entities(
          entity_type_path, [entity_value])
docs: Delete entity with the given entity type and entity value.