Fix memory leak in psy code.
Fix memory leak in psy code.

svn path=/trunk/vorbis/; revision=3444

emscripten-ports/Vorbis,mwgoldsmith/vorbis,erikd/vorbis,ShiftMediaProject/vorbis,felipebetancur/vorbis,emscripten-ports/Vorbis,ksophocleous/vorbis,felipebetancur/vorbis,mwgoldsmith/vorbis,youfearm3/vorbis,youfearm3/vorbis,eidy/vorbis,eidy/vorbis,ksophocleous/vorbis,ksophocleous/vorbis,ShiftMediaProject/vorbis,eidy/vorbis,ShiftMediaProject/vorbis,ShiftMediaProject/vorbis,ShiftMediaProject/vorbis,mwgoldsmith/vorbis,felipebetancur/vorbis,erikd/vorbis,ksophocleous/vorbis,eidy/vorbis,emscripten-ports/Vorbis,mwgoldsmith/vorbis,emscripten-ports/Vorbis,nicolaichuk/vorbis,nicolaichuk/vorbis,felipebetancur/vorbis,erikd/vorbis,nicolaichuk/vorbis,erikd/vorbis,youfearm3/vorbis,ShiftMediaProject/vorbis,youfearm3/vorbis,nicolaichuk/vorbis