'Delete snapshot.'

def delete_snapshot(self, snapshot):

    LOG.debug('enter:    delete_snapshot:    delete    %(snap)s.', {'snap': snapshot['name']})
    self._wait_vdisk_copy_completed(snapshot['name'])
    self._delete_vdisk(snapshot['name'], False)
    LOG.debug('leave:    delete_snapshot:    delete    %(snap)s.', {'snap': snapshot['name']})
