Revert "Forcing jenkins master to use sun-java"
Revert "Forcing jenkins master to use sun-java"

This reverts commit abb2313d001cb5629d89bf41d36aec3c26014d4e.

alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet