code: func (az *Cloud) DeleteFileShare(accountName, accountKey, shareName string) error {
  	if err := az.deleteFileShare(accountName, accountKey, shareName); err != nil {
  		return err
  	}
  	klog.V(4).Infof("share %s deleted", shareName)
  	return nil
  }
docs: // DeleteFileShare deletes a file share using storage account name and key