WHAT

In the authorizer plugin, we have a default of "false" for the feature flag for partition limit enforcement, and hold the same default in the kas-fleetshard. Then in managed-tenants, we set an override to set the value to true. Now that we've rolled out enforcement, we can set the property to true in the fleetshard & remove the override in managed-tenants.

An alternative might be to turn on enforcement by default in the authorizer plugin. In that case we could even remove the property setting for it through the fleetshard operator altogether (and maybe even the feature flag from the authorizer plugin).

WHY

It was only intended to be a temporary way to way to enable us to decouple the enabling of partition enforcement from the rolling out of the release that contained the feature (and allow us to turn it off if there were any unforseen issues).