tree c998a2cd8cca99ea2bf0c40285da3394c7465d96
parent 68fc8b093a42e8c0eaf2d453ea4d29a0af220718
author zhufl <zhu.fanglei@zte.com.cn> 1471576994 +0800
committer zhufl <zhu.fanglei@zte.com.cn> 1471576994 +0800

Use cls in class method instead of self

_delete_domain is a class method, so cls should be
used instead of self.

Change-Id: I26eefaaf1ffbf95f7faa2793bd88bc4a1f2556c8