Code review comment for lp:~canonical-platform-qa/ubuntu-system-tests/systemd_support

> Following the uitk removal landing, there are some helpers that will need
> fixing as they are currently using initctl directly:
> http://bazaar.launchpad.net/~canonical-platform-qa/ubuntu-system-tests/systemd
> _support/view/head:/ubuntu_system_tests/helpers/ubuntuuitoolkit/environment.py

I've addressed this comment. Initctl-specific code was removed and some functions refactored accordingly. Thanks!