Automatically removing robots.txt provided by Drupal core

As per #9

This didn't work for me.

            "file-mapping": {
                "public_html/robots.txt": {
                    "mode": "skip"
                }
            }

The file still got scaffolded.

This worked.
,

    "scripts": {
      "post-install-cmd": [
        "rm public_html/robots.txt"
      ],
      "post-update-cmd": [
        "rm public_html/robots.txt"
      ]
    }

The file got removed.

Well. Not until I moved to the live server. On the live server, the script equally didn't work for me.