beta: drop now unneed ssh ferm rule

We had a ferm rule on Parsoid instance to let deployment-bastion ssh to
the box and restart the parsoid service.  This is no more needed since
the instance is a Jenkins slave and the restart is made by the job.

Change-Id: I293baae6af623548e14258fe54c17f6ee6f88eac
beta: remove duplicate ferm::rule

The Parsoid instance on the beta cluster is a Jenkins slave which is
setup via role::ci::slave::labs::common which in turns adds a ferm rule
to allow ssh from Jenkins master (role::ci::slave::labs::common).

Drop the redundant ferm rule defined in the Parsoid manifest.

Change-Id: I41ef6a4c87dc6aec163ce6043ed3a913c94b715e
Merge changes I41ef6a4c,I293baae6 into production

* changes:
  beta: remove duplicate ferm::rule
  beta: drop now unneed ssh ferm rule