Revert "(PUP-3277) Ensure that user and group are set in func4x test"

This reverts commit e6e0ae02dcc41746d8196b4a6e0e11248af51006.

Conflicts:
acceptance/tests/loader/func4x_loadable_from_modules.rb

A previous commit added a puppet config command for setting
environmentpath, which I've kept.