'Executes a DELETE query on the named table, expecting to delete a
single row.
Args:
table : string giving the table name
keyvalues : dict of column names and values to select the row with'

def _simple_delete_one(self, table, keyvalues, desc='_simple_delete_one'):

    return self.runInteraction(desc, self._simple_delete_one_txn, table, keyvalues)
