@Override
  public synchronized void delete(Class model, int id) {
    LOG.debug(String.format("Deleting %s:%d", model.getName(), id));
    String modelPropName = getItemPropertyName(model, id);
    clear(modelPropName);
  }
Remove line from storage
@param modelPropName key
contrib/views/pig/src/main/java/org/apache/ambari/view/pig/persistence/KeyValueStorage.java