Removing node version

Removing this version so it doesn't cause confusion with the quickstart.
This sample is used with this quickstart: https://docs.microsoft.com/en-us/azure/app-service/app-service-web-get-started-nodejs
The quickstart currently specifies 8.11.1. Removing the version from package.json ensures that the App Setting takes precedence and there's no confusion on overrides.

Author: msangapu-msft

package.json

@@ -5,9 +5,6 @@
     "private": true,
     "license": "MIT",
     "author": "Microsoft",
-    "engines": {
-        "node": ">=6.9.1"
-    },
     "scripts": {
         "start": "node index.js"
     }