Removing Ubuntu One (ubuntuone-syncd)

First track down and kill the process of ubuntuone-syncd

ps -ef|grep ubuntu
kill -9 {pid number}

then remove the folders it uses
rm –rf ~/.local/share/ubuntuone
rm –rf ~/.cache/ubuntuone
rm –rf ~/.config/ubuntuone
rm –rf ~/Ubuntu\ One

then remove the packages
 sudo apt-get purge ubuntuone-client* python-ubuntuone-storage*


you should be sorted!