Remove James Stewart
Remove James Stewart

James has moved into a management role and we should keep the pool of
people with root access to a minimum, so remove his access.

boffbowsh/ci-puppet,boffbowsh/ci-puppet,alphagov/ci-puppet,boffbowsh/ci-puppet,alphagov/ci-puppet,boffbowsh/ci-puppet,alphagov/ci-puppet,alphagov/ci-puppet