Remove LinuxJedi and soren from the nodes.

Change-Id: I6f9758ba179414ffce1c0da3c12e7269dde16c6d
Reviewed-on: https://review.openstack.org/24971
Reviewed-by: Jeremy Stanley <fungi@yuggoth.org>
Reviewed-by: Khai Do <zaro0508@gmail.com>
Approved: James E. Blair <corvus@inaugust.com>
Reviewed-by: James E. Blair <corvus@inaugust.com>
Tested-by: Jenkins