Revert "Merge pull request #2497 from gds/69168538-allow_vrrp"
Revert "Merge pull request #2497 from gds/69168538-allow_vrrp"

This reverts commit 890ad39f2699d988aa69894fc6dfb3a47fb01bb9, reversing
changes made to ba2fba7eefb22572fa2ad68a9095b6e6ed9c85a6.

We're not yet using keepalived, so revert this change.

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