Remove trailing space and commented out code

docker-compose.yml

@@ -1,11 +1,9 @@
 version: "2"
-volumes:
-  pgdata:
 services:
   postgres:
     image: "openmaptiles/postgis:2.2"
     volumes:
-     - pgdata:/var/lib/postgresql/data
+     - ./pgdata:/var/lib/postgresql/data
     ports:
      - "5432"
     env_file: .env