Simplify pcmbuf_beep() a little, should be no functional change but it seems to mysteriously change the PortalPlayer 'keyclick beep of death' problem into a 'barely-there keyclick' problem.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16947 a1c6a512-1295-4272-9138-f99709370657
1 file changed