Revert "burncast: Add option to emit bell character"
Revert "burncast: Add option to emit bell character"

This reverts commit 33357d86c51b423166d7d9ff55a1bcfe10af0504.

This was superfluous. It can be replaced by:

    $ ./burncast foo.mp3 && printf '\a'

wlhlm/scripts,wlhlm/scripts