[#67235848] Remove the utils

These are unmaintained and unsupported. Useful functionality should migrate into the tools themselves.

It's a "dumping ground" for tools that "should be considered low quality", so this isn't the right place for them. For now, I have moved them to this repo: https://github.com/alphagov/vcloud-tools-scratch but there is a story to tidy up and ideally remove that repo: https://www.pivotaltracker.com/story/show/69448896

Potentially this PR could have included some extra tidy-up, e.g. lib/vcloud.rb - however, that is all going to be covered in the rest of the story to make this into a meta-gem so I'm not sure there is a lot of value in making sure that the tidy-up there line-by-line is reflected here.