Fix documentation about CKAN bulk deletion
Fix documentation about CKAN bulk deletion

Remote access has been disabled [1] since the steps were written [2].

[1]: https://github.com/alphagov/govuk-puppet/commit/b9f4235091c0b13d900930bea9c8ae7a905f9d12#diff-50b8bfe88e4f51b16978ee56630555fdbaa2372eca7d78029263ef79621c6a52
[2]: https://github.com/alphagov/govuk-developer-docs/commit/8f4e201953120ad30a70f29d0abe50070bf908c6

alphagov/govuk-developer-docs,alphagov/govuk-developer-docs,alphagov/govuk-developer-docs,alphagov/govuk-developer-docs