code: func (v VolumePathHandler) RemoveMapPath(mapPath string) error {
  	if len(mapPath) == 0 {
  		return fmt.Errorf("Failed to remove map path. mapPath is empty")
  	}
  	klog.V(5).Infof("RemoveMapPath: mapPath %s", mapPath)
  	err := os.RemoveAll(mapPath)
  	if err != nil && !os.IsNotExist(err) {
  		return err
  	}
  	return nil
  }
docs: // RemoveMapPath removes a file or directory on specified map path