fix(maps): remove old extra block

salt/osmap.yaml

 {%- set repoarch = salt['grains.get']('osarch') %}
 {%- set osrelease = salt['grains.get']('osrelease', '') %}
 {%- set salt_release = salt['pillar.get']('salt:release', 'latest') %}
-{%- if salt_release != "latest" %}
-{%-   set salt_release_major = salt_release.split('.') | map('.') | list | first %}
-{%- endif %}
 {%- if salt_release.split('.')|length >= 3 %}
 {%-   set salt_release = 'archive/' ~ salt_release %}
 {%- endif %}