Fix map.jinja: openssh:lookup is not used anyways

openssh/map.jinja

 {% set osfinger = salt['grains.filter_by'](osfingermap, grain='osfinger') or {} %}
 {% do salt['defaults.merge'](defaults, osfinger) %}
 
-{## merge the lookup ##}
-{% set lookup = salt['pillar.get']('openssh:lookup', default={}, merge=True) %}
-{% do salt['defaults.merge'](defaults['openssh'], lookup) %}
-
 {## merge the openssh pillar ##}
 {% set openssh = salt['pillar.get']('openssh', default=defaults['openssh'], merge=True) %}
 {% set ssh_config = salt['pillar.get']('ssh_config', default=defaults['ssh_config'], merge=True) %}