Remove bad instructions from docker-compose

Dockerfile

@@ -1,7 +1,7 @@
 FROM node:8
-WORKDIR /code
 COPY package*.json ./
+ENV IS_DOCKER 1
+RUN env
 RUN npm install
 COPY . .
 EXPOSE 8080
-CMD ["npm", "start"]

docker-compose-frontend.yml

@@ -4,6 +4,6 @@ services:
   web-frontend:
     build: .
     image: git.sahkoinsinoorikilta.fi:4567/vtmk/web2.0-frontend
-    command: ["bash", "-c", "cd /code && ./wait-for-it.sh db:5432 -- npm run start-prod"]
+    command: ["bash", "-c", "npm run start-prod"]
     ports:
       - "3000:8080"