delete port setting of db in testing yml

docker-compose.testing.yml

@@ -71,8 +71,8 @@ services:
       - MONGO_USER=user
       - MONGO_PASS=user-password
       - MONGO_DB=odyssey-test
-    ports:
-      - 27017:27017
+#    ports:
+#      - 27017:27017
 
   base:
     image: linuxodyssey/quest-base