The legacy DHT-based rate-limiter, currently available in service-runner, doesn't work in k8s environment and is supposed to be removed once all usages have been eliminated. So far, the only user of the feature is RESTBase. We need to move the feature from service-runner into hyperswithch to stop confusing people.

Also, DHT packages are fairly old and not well supported, so moving the feature will decrease the blast radius in case there is a vulnerability - way less software uses hyper switch then service-runner.