Remove eduserver (#2306)

* Move receipt sending to own JetStream producer

* Move SendToDevice to producer

* Remove most parts of the EDU server

* Fix SendToDevice & copyrights

* Move structs, cleanup EDU Server traces

* Use HeadersOnly subscription

* Missing file

* Fix linter issues

* Move consumers to own files

* Rename durable consumer; Consumer cleanup

* Docs/config cleanup

build/docker/config/dendrite.yaml

@@ -160,12 +160,6 @@ client_api:
     threshold: 5
     cooloff_ms: 500
 
-# Configuration for the EDU server.
-edu_server:
-  internal_api:
-    listen: http://0.0.0.0:7778
-    connect: http://edu_server:7778
-
 # Configuration for the Federation API.
 federation_api:
   internal_api:

build/docker/docker-compose.polylith.yml

@@ -84,18 +84,6 @@ services:
       - internal
     restart: unless-stopped
 
-  edu_server:
-    hostname: edu_server
-    image: matrixdotorg/dendrite-polylith:latest
-    command: eduserver
-    volumes:
-      - ./config:/etc/dendrite
-    depends_on:
-      - jetstream
-    networks:
-      - internal
-    restart: unless-stopped
-
   federation_api:
     hostname: federation_api
     image: matrixdotorg/dendrite-polylith:latest