Remove unused code in test_attach_interfaces.py

[huangtianhua]

Remove unused code in test_attach_interfaces.py:

body = jsonutils.dumps({'port_id': FAKE_PORT_ID1}) is unused in test_attach_interface_without_network_id().

We should remove it.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/65196

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/65196
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=20fa2a35c843afe409ad347a40751bb59f9ecf9e
Submitter: Jenkins
Branch: master

commit 20fa2a35c843afe409ad347a40751bb59f9ecf9e
Author: huangtianhua <email address hidden>
Date: Tue Jan 7 10:08:01 2014 +0800

    Remove unused code in test_attach_interfaces.py

    "body = jsonutils.dumps({'port_id': FAKE_PORT_ID1})" is unused in
    test_attach_interface_without_network_id(). We should remove it.

    Change-Id: Id31b559752d57c9f55fd2bf0de909b8d8f9a0333
    Closes-Bug: #1266617