Fix media cleanup on windows, which was entirely broken, entirely on account of Richard committing untested code (for shame!).
Fix media cleanup on windows, which was entirely broken, entirely on account
of Richard committing untested code (for shame!).

adamlwgriffiths/Pyglet,niklaskorz/pyglet,niklaskorz/pyglet,seeminglee/pyglet64,adamlwgriffiths/Pyglet,adamlwgriffiths/Pyglet,seeminglee/pyglet64,seeminglee/pyglet64,niklaskorz/pyglet,niklaskorz/pyglet,adamlwgriffiths/Pyglet