Updated openstack/openstack
Project: openstack/tempest  e38fddbef28888e6da54c2d44e7e91eb67cdd529
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Remove baremetal xml support

Ironic decided to not to support xml in API, therefore we remove
corresponding workpiece from the tests.

Change-Id: I35849526778e3ad9428ee9c791a78cf0b86b190f