(MODULES-4474) Drop autorequire of fragments in concat_file
(MODULES-4474) Drop autorequire of fragments in concat_file

The concat_file type defines an autorequire of related fragments which
can unnecessarily lead to dependency cycles.

It's not evident why fragments exactly need to be required as the type
seems to work fine without it.

This commit drops the autorequire that collects fragments in
concat_file to prevent these dependency cycles from happening.

puppetlabs/puppetlabs-concat