Remove duplicate npm install and build steps in production scripts

backend/package.json

@@ -22,7 +22,6 @@
   "scripts": {
     "build": "tsc",
     "start": "npm run build && node dist/index.js",
-    "production": "npm install && npm run build && node dist/index.js",
     "test": "echo \"Error: no test specified\" && exit 1"
   },
   "dependencies": {