Remove update scripts from bundle

[ctgreybeard]

The XML downloaded by curl -s "https://api.github.com/repos/adafruit/Adafruit_CircuitPython_Bundle/releases/latest" contains no tag "browser_download_url" which leads to a null $download_link.

[tannewt]

Hi @ctgreybeard thanks for the report! I need to remove this script. It doesn't support the multiple bundles we have available now. We hope to have auto-updating available in the future but for now please do it manually. Sorry for the inconvenience.

[tannewt]

These have been removed.