drop matrix vm from monitoring + fix synapse prom listener

k8s/matrix/config-janky.bot/homeserver.yaml

@@ -9,10 +9,8 @@ listeners:
       - names: [client, federation]
         compress: false
   - port: 8000
-    type: http
-    bind_addresses: ['0.0.0.0']
-    resources:
-      - names: [metrics]
+    type: metrics
+enable_metrics: true
 database:
   name: sqlite3
   args:

k8s/matrix/config-janky.solutions/homeserver.yaml

@@ -9,10 +9,8 @@ listeners:
       - names: [client, federation]
         compress: false
   - port: 8000
-    type: http
-    bind_addresses: ['0.0.0.0']
-    resources:
-      - names: [metrics]
+    type: metrics
+enable_metrics: true
 database:
   name: psycopg2
   args:
@@ -22,7 +20,6 @@ log_config: "/config/log.yaml"
 media_store_path: /data/media_store
 registration_shared_secret: "SECRET_registration_shared_secret"
 report_stats: false
-macaroon_secret_key: "SECRET_macaroon_secret_key"
 form_secret: "SECRET_form_secret"
 signing_key_path: "/secrets/janky.solutions.signing.key"
 trusted_key_servers: