Updated openstack/openstack
Project: openstack-dev/devstack  4b1266e10964b244b5e7473e9a14421aee8590fd
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Don't warn about heat modifying flavors

Since de0898a Heat no longer modifies flavors, so the comment
and output related to modified flavors is no longer needed.

Change-Id: I1007d2ab3387f28b8d7487f450cab4592f2824aa