Remove Ubuntu One

The feature to upload to Ubuntu One file services must be removed because the service was discontinued on July 31st.

========================================
The service has been discontinued
We are sorry to notify you that the Ubuntu One file services have been shut down.

As always, your content belongs to you. If you have already uploaded any content you can simply download your files onto your PC or an external hard drive. You have until 31 July 2014 to collect all of your content. After that date, all remaining content will be deleted.

We've always been inspired by the support, feedback and enthusiasm of our users and want to thank you for the support you've shown for Ubuntu One. We hope that you'll continue to support us as together we bring a revolutionary experience to new devices.

See our original announcement or follow up posts for more details.

The Ubuntu One team
========================================

source: https://one.ubuntu.com/shutdown/