[FIX] orm: early return within ``_apply_ir_rules`` for superuser.
[FIX] orm: early return within ``_apply_ir_rules`` for superuser.

  Save a few time by not not trying to apply ir.rule for superuser, that will
  anyway be skipped within ir.rule's ``_compute_domain`` method.


akretion/openerp-server,akretion/openerp-server,akretion/openerp-server