Fail to create cluster if there is Chinese in tenant name

[Wang Bo]

This is only tested for k8s_fedora_atomic driver

How to reproduce:
Create cluster with a user having chinese tenant name.
Found following Error Log in heat-engine:
Resource CREATE failed: UnicodeEncodeError: resources.kube_masters.resources[1].resources.kube_master_init: 'ascii' codec can't encode characters in position 897-1151: ordinal not in range(128)

Solutions:
Magnum will save TENANT_NAME into VM by user-data, but TENANT_NAME is not in using now after changed to trustee. ref: https://review.openstack.org/#/c/445404/. So remove TENANT_NAME

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/494446

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/494446
Committed: https://git.openstack.org/cgit/openstack/magnum/commit/?id=048400bd4bbbf3bdf80f8b391712c5bc1e9dde79
Submitter: Jenkins
Branch: master

commit 048400bd4bbbf3bdf80f8b391712c5bc1e9dde79
Author: chestack <[e-mail]>
Date: Thu Aug 17 16:26:28 2017 +0800

    Remove TENANT_NAME from /etc/sysconfig/heat-params

    1. It will fail to create cluster if there is chinese in tenant name
    2. TENANT_NAME is unnecessary after changing to trustee

    this patch is for k8s_fedora_atomic and k8s_fedora_ironic

    Change-Id: Ie072f183110ae95861fb3694a913a3a4526549fb
    Close-Bug: #1711308

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/pike
Review: https://review.openstack.org/497153

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/497153
Committed: https://git.openstack.org/cgit/openstack/magnum/commit/?id=44d21724a9da1d63e4bd26daf04ba7ab88200690
Submitter: Jenkins
Branch: stable/pike

commit 44d21724a9da1d63e4bd26daf04ba7ab88200690
Author: chestack <[e-mail]>
Date: Thu Aug 17 16:26:28 2017 +0800

    Remove TENANT_NAME from /etc/sysconfig/heat-params

    1. It will fail to create cluster if there is chinese in tenant name
    2. TENANT_NAME is unnecessary after changing to trustee

    this patch is for k8s_fedora_atomic and k8s_fedora_ironic

    Change-Id: Ie072f183110ae95861fb3694a913a3a4526549fb
    Close-Bug: #1711308
    (cherry picked from commit 048400bd4bbbf3bdf80f8b391712c5bc1e9dde79)