Completely disable the option to collapse albums in the playlist. the reasons are:

1. It was buggy as hell
2. We had no sane way of handling what happens if the current/selected track is within the album that is collapsed and other corner cases
3. We had no updated graphics for it
4. I have really come to think that the feature is not really as useful as I first thought

I think we can reconsider when the playlist is ported to use real layouts.