Remove database service configuration from docker-compose

docker-compose.yml

@@ -16,17 +16,4 @@ services:
     depends_on:
       - db
 
-  db:
-    image: postgres:15
-    restart: always
-    environment:
-      POSTGRES_USER: user
-      POSTGRES_PASSWORD: password
-      POSTGRES_DB: dbname
-    ports:
-      - "5432:5432"
-    volumes:
-      - pgdata:/var/lib/postgresql/data
-
-volumes:
-  pgdata:
+