The help test had its own needle for the user creation link,
but we already have an existing one. We should probably re-
arrange all the needles that are in 'install_process' now the
root and user creation spokes are moved to the main hub, but
that's a big change so I'll do it separately. This just removes
the duplicate needle and tweaks some match names.
Signed-off-by: Adam Williamson <awilliam@redhat.com>