Remove the web service definition and stop publishing the webapp

[refs #1cb3fa562b2d]

Author: jfahrer

compose_example/docker-compose.yml

@@ -1,13 +1,6 @@
 version: '3.3'
 
 services:
-  web:
-    image: nginx:latest
-    ports:
-      - 80:80
-    volumes:
-      - ./html:/usr/share/nginx/html
-
   pg:
     image: postgres:9.6-alpine
     environment:
@@ -21,8 +14,6 @@ services:
     image: jfahrer/demo_web_app:wait_for_pg
     depends_on:
       - pg
-    ports:
-      - 9292:9292
     environment:
       - POSTGRES_DB
       - POSTGRES_USER