tree 00a326f7d981f8d8dbc8e0ab27fe4cab31894a08
parent 288c6a253810046ee735f9f28cdfddcbac02c517
author zhufl <zhu.fanglei@zte.com.cn> 1480908624 +0800
committer zhufl <zhu.fanglei@zte.com.cn> 1480908624 +0800

Remove prepare_instance_network in ImagesOneServerNegativeTestJSON

In ImagesOneServerNegativeTestJSON, all testcases are negative and
have no relationship with "ssh into the server", so there is no
need to use prepare_instance_network in setup_credentials. This is
to remove it for code clean.

Change-Id: I7de581e19ff9eb02473dd2f26bb833e2d270fd06