Remove the `gds-nagios-plugins` package
Remove the `gds-nagios-plugins` package

- We've moved everything that used to be here out of
  alphagov/nagios-plugins and into the plugins directory of this repo.

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