Remove conditional for (long since defunct) DR VDCs.
Remove conditional for (long since defunct) DR VDCs.

We no longer have any Puppet nodes running in UKCloud (Skyscape) or
Carrenza (6degrees), so this code path is obsolete and should no longer
be taken. It was being triggered erroneously by a bug; see 968e1b3.

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