This should help de-Amazon your Ubuntu.

1. Ubuntu Settings --> Privacy -->Include online results [OFF]

2. sudo apt-get remove unity-lens-shopping unity-scope-video-remote unity-scope-musicstores unity-webapps-service

3. Launch dconf-editor, navigate to: com -> canonical -> unity -> webapps, and then remove everything under allowed-domains, dontask-domains and preauthorized-domains

References:

http://askubuntu.com/questions/192269/how-can-i-remove-amazo...

http://askubuntu.com/questions/214755/how-to-remove-unity-we...

http://xchamitha.blogspot.com/2012/11/de-amazonising-ubuntu-...