Merge branch 'evilham-postfix' into 'master'

[__postfix] Automagically support more OSs by not checking too much.

See merge request ungleich-public/cdist!866

cdist/conf/type/__postfix/manifest

@@ -19,16 +19,4 @@
 # along with cdist. If not, see <http://www.gnu.org/licenses/>.
 #
 
-
-os=$(cat "$__global/explorer/os")
-
-case "$os" in
-   alpine|ubuntu|debian|archlinux|suse|scientific|centos|devuan)
-      __package postfix --state present
-   ;;
-   *)
-      echo "Your operating system ($os) is currently not supported by this type (${__type##*/})." >&2
-      echo "Please contribute an implementation for it if you can." >&2
-      exit 1
-   ;;
-esac
+__package postfix --state present