'Remove ALL ready items from the C* row'

@classmethod
def cleanup(cls, rowkey, ready_items, ready_timestamps, unripe_timestamps):

    if ((not unripe_timestamps) or (min(unripe_timestamps) > max(ready_timestamps))):
        cls._cf.remove(rowkey, timestamp=max(ready_timestamps))
        g.stats.simple_event('trylater.{system}.row_delete'.format(system=rowkey), delta=len(ready_items))
    else:
        cls._cf.remove(rowkey, ready_items.keys())
        g.stats.simple_event('trylater.{system}.column_delete'.format(system=rowkey), delta=len(ready_items))
