when user only in one tenant,the tenant region should hide drop_arrow.png

[tinytmy]

when user only in one tenant, the tenant region show drop_arrow.png, this will confuse user.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/93252

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/93252
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=a930737cf6c7e237cee60ccfae543e882dc11a51
Submitter: Jenkins
Branch: master

commit a930737cf6c7e237cee60ccfae543e882dc11a51
Author: tintmy <email address hidden>
Date: Mon May 12 09:45:04 2014 +0800

    Fix hide drop_arrow.png if only one tenant

    when user only in one tenant, the tenant region show drop_arrow.png,
    this will confuse user. It needs to hide.

    Closes-bug:#1316471

    Change-Id: I9f1fefcc6a23e6e6a555a59df6ae7f50d65edbe2