Remove deprecated blacklist/whitelist params and single-source plugins (

#3932)

* single-source ip restriction plugin, delete old versions

* single-source bot detection plugin, delete old version

* single source acl plugin, delete old version

* Fix field.maximum_version for plugin table

* add version-specific text; switch acl plugin to delegate_versions

* add missing note for ip restriction plugin

* apply feedback

Co-authored-by: Michael Heap <m@michaelheap.com>