Remove duplicated pillar.get calls to retrieve the sshd_config and ssh_config pillars

openssh/files/ssh_config

@@ -1,5 +1,5 @@
-{%- import_yaml "openssh/defaults.yaml" as default_settings -%}
-{%- set ssh_config = salt['pillar.get']('ssh_config', default=default_settings.default.ssh_config, merge=True) -%}
+{% from "openssh/map.jinja" import ssh_config with context %}
+
 {#- present in ssh_config and known in actual file options -#}
 {%- set processed_options = [] -%}
 {%- set string_or_list_options = ['KexAlgorithms', 'Ciphers', 'MACs'] -%}