Updated openstack/openstack
Project: openstack/tempest  711fc1a275ae586d8f3cdf64a1c9f8a74a3d7d53
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Remove Swift container-sync test skipping

The skipping reason was bug #1093743 that
is currently marked as invalid in Swift bugtracker.

This patch remove the skip and propose some
refactoring to the test code.

The test is marked as slow as it can take long
to run as it depends on container-sync process run
internal which is 300 seconds by default.

Change-Id: I939a014646b42cb2a461f874a5ad0edfc79c5561