[misc] cleanup unused dependency on redis

services/chat/buildscript.txt

@@ -4,7 +4,7 @@ chat
 --env-add=
 --node-version=10.19.0
 --acceptance-creds=None
---dependencies=mongo,redis
+--dependencies=mongo
 --docker-repos=gcr.io/overleaf-ops
 --env-pass-through=
 --script-version=1.3.5

services/chat/config/settings.defaults.js

@@ -20,13 +20,5 @@ module.exports = {
     url:
       process.env['MONGO_CONNECTION_STRING'] ||
       `mongodb://${process.env['MONGO_HOST'] || 'localhost'}/sharelatex`
-  },
-
-  redis: {
-    web: {
-      host: process.env['REDIS_HOST'] || 'localhost',
-      port: '6379',
-      password: process.env['REDIS_PASSWORD'] || ''
-    }
   }
 }

services/chat/docker-compose.ci.yml

@@ -27,8 +27,6 @@ services:
     depends_on:
       mongo:
         condition: service_healthy
-      redis:
-        condition: service_healthy
     user: node
     command: npm run test:acceptance:_run
 
@@ -40,8 +38,5 @@ services:
       - ./:/tmp/build/
     command: tar -czf /tmp/build/build.tar.gz --exclude=build.tar.gz --exclude-vcs .
     user: root
-  redis:
-    image: redis
-
   mongo:
     image: mongo:3.6

services/chat/docker-compose.yml

@@ -34,13 +34,8 @@ services:
     depends_on:
       mongo:
         condition: service_healthy
-      redis:
-        condition: service_healthy
     command: npm run test:acceptance
 
-  redis:
-    image: redis
-
   mongo:
     image: mongo:3.6