more eel cleanup

[diego pemas net]

hi

with the recent "deprecation" of nautilus-music-view the files
eel-background-box.[c-h] are unneeded, should i clean them up? or is the music
view going to be taken back to life?

I have some patches laying around that clean up more stuff but  i'm having
problems with my ADSL connection, and i only have connection for a few minutes
each day, once this is solved i will send the patches.

Diego