_includes/cli.md: remove "validation" for include-file

Removing this "check" because it made the template difficult to
read, and duilding the docs won't fail if these values are missing.

If a page is empty, it's probably fast to find why anyway.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

_includes/cli.md

@@ -1,6 +1,4 @@
 {% capture tabChar %}	{% endcapture %}<!-- Make sure atom is using hard tabs -->
-{% if include.datafolder and include.datafile %}
-
 {% assign controller_data = site.data[include.datafolder][include.datafile] %}
 
 ## Description
@@ -140,11 +138,6 @@ For example uses of this command, refer to the [examples section](#examples) bel
 
 {{ controller_data.examples }}
 
-{% endif %}
-{% else %}
-
-The include.datafolder or include.datafile was not set.
-
 {% endif %}
 
 {% if controller_data.pname %}