qemu: Don't try to fetch migration stats on destination
qemu: Don't try to fetch migration stats on destination

Migration statistics are not available on the destination host and
starting a query job during incoming migration is not allowed. Trying to
do that would result in

    Timed out during operation: cannot acquire state change lock (held
    by remoteDispatchDomainMigratePrepare3Params)

error. We should not even try to start the job.

https://bugzilla.redhat.com/show_bug.cgi?id=1278727

Signed-off-by: Jiri Denemark <62bdf77dc47919a4d59a91822129d14633cfca81@redhat.com>

VenkatDatta/libvirt,taget/libvirt,fabianfreyer/libvirt,jfehlig/libvirt,taget/libvirt,jfehlig/libvirt,crobinso/libvirt,datto/libvirt,crobinso/libvirt,andreabolognani/libvirt,nertpinx/libvirt,fabianfreyer/libvirt,jardasgit/libvirt,andreabolognani/libvirt,olafhering/libvirt,zippy2/libvirt,taget/libvirt,taget/libvirt,libvirt/libvirt,fabianfreyer/libvirt,eskultety/libvirt,fabianfreyer/libvirt,olafhering/libvirt,eskultety/libvirt,andreabolognani/libvirt,VenkatDatta/libvirt,zippy2/libvirt,fabianfreyer/libvirt,jardasgit/libvirt,andreabolognani/libvirt,zippy2/libvirt,nertpinx/libvirt,jfehlig/libvirt,crobinso/libvirt,datto/libvirt,crobinso/libvirt,olafhering/libvirt,jardasgit/libvirt,libvirt/libvirt,libvirt/libvirt,zippy2/libvirt,VenkatDatta/libvirt,andreabolognani/libvirt,datto/libvirt,nertpinx/libvirt,eskultety/libvirt,olafhering/libvirt,VenkatDatta/libvirt,jardasgit/libvirt,VenkatDatta/libvirt,datto/libvirt,nertpinx/libvirt,libvirt/libvirt,jfehlig/libvirt,eskultety/libvirt,taget/libvirt,nertpinx/libvirt,jardasgit/libvirt,datto/libvirt,eskultety/libvirt