'Removes all labels for a given client object.
Args:
client: A VFSGRRClient record.'

def RemoveClientLabels(self, client):

    keywords = []
    for label in client.GetLabelsNames():
        keyword = self._NormalizeKeyword(utils.SmartStr(label))
        keywords.append(keyword)
        keywords.append(('label:%s' % keyword))
    self.RemoveKeywordsForName(self._ClientIdFromURN(client.urn), keywords)
