There is no jenkins, only zuul! With zuulv3 running in production,
there is no more need to add jenkins user or scripts to our images.
Move chmod of /opt/cache/files from
nodepool/elements/jenkins-slave/install.d/20-jenkins-slave to
nodepool/elements/zuul-worker/install.d/60-zuul-worker
We also leave the jenkins-slave elements for now, in case 3rd party CI
use them.
Change-Id: Ia9750877fbc1a17ec467ca4ac685afdb9c1627f8
Signed-off-by: Paul Belanger <pabelanger@redhat.com>