New answers tagged lenses
The answer was to delete the Super key binding, which is used to open the dash. I think the search lens is bound to <whatever opens the dash>+C so that did it.
I know this is an old post, but a quicker way of removing scopes would be this command: apt-get remove unity-scope-* unity-scope-home+ It removes all the ones that aren't required for Ubuntu, and leaves the one that is (tested with 16.04).
You can remove unity music lens, it can't be disabled. sudo apt-get remove unity-lens-music
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