Don't double log API request

If debug logging is enabled the full API call, request and response is
logged, so don't log the request twice.

Change-Id: I45baa04a2daae8fd31c30183ac10464b7affbc21
Fix resource leakage in messaging.test_queues

Test messaging.test_queues.test_delete_queue does pop 1 element from
shared list (self.queues which is being used by other tests as well
as in resource cleanup) and then delete request is done.

In case where delete request fails then it cause other tests to fail
and resource leakage as element has been removed from self.queues
even before actual deletion.

Individual test should not be side-effecting mutable class variables
that are used by other tests. So merging delete tests with create tests.

Closes-Bug: #1377031

Change-Id: If24a903160e716a685d7121e0968881542f072fc
Merge "Don't double log API request"
Merge branch 'master' of https://github.com/openstack/tempest