Remove MySQL from MongoDB nodes
Remove MySQL from MongoDB nodes

EC2 has been deprecated. Thus no longer needed, per comment.

We'll either need to manually uninstall it from existing nodes or just
allow this to happen as part of the Platform1 migration - if the affected
machines haven't already been provisioned there.

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