Hello all.

I'm working on improving libvirt usage in VDSM. Rationale is that libvirt driver has global lock, that holds us in any operation on many VMs simultaneously. Several small patches are prepared, so I'm starting to commit them.

The first one [1] removes UUIDString check in VM startup. It was used to test local libvirt for the bug 603494 [2], which is closed so long time ago, so there is no need to support this case, fixed already all across the distributives, including RHEL 6.x.

I wouldn't care, but in mass VM startup (dozens and hundreds of VMs) each extra call costs. So thanks for review/merge.

[1] — http://gerrit.ovirt.org/#/c/11054/
[2] — https://bugzilla.redhat.com/show_bug.cgi?id=603494
Peter V. Saveliev
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