docs: remove dius pact broker section

DiUS pact broker image is no longer supported and is not actively maintained.

See pact-foundation/docs.pact.io#242

README.md

@@ -27,12 +27,6 @@ The `pactfoundation/pact-broker` image is a forked version of the `dius/pact-bro
 
 All the environment variables used for `dius/pact-broker` are compatible with `pactfoundation/pact-broker`. The only breaking change is that the default port has changed from `80` to `9292` (because a user without root permisisons cannot bind to a port under 1024). If you wish to expose port 80 (or 443) you can deploy Ngnix in front of it (see the [docker-compose](https://github.com/pact-foundation/pact-broker-docker/blob/master/docker-compose.yml) file for an example).
 
-### Which one should I use?
-
-Please read https://github.com/phusion/passenger/wiki/Puma-vs-Phusion-Passenger for information on which server will suit your needs best. The tl;dr is that if you want to run the docker image in a managed architecture which will make your application highly available (eg. ECS, Kubernetes) then use the `pactfoundation/pact-broker`. Puma will not restart itself if it crashes, so you will need external monitoring to ensure the Pact Broker stays available.
-
-If you want to run the container as a standalone instance, then the `dius/pact-broker` image which uses Phusion Passenger may serve you better, as Passenger will restart any crashed processes.
-
 ## Platforms
 
 Multi-platform images are available