* removed old sound loading code, which was the last bit to use cacheAllocateBlock which is also gone now.
* cleanup of player sound code. All game side tracking of the sound resources has been removed.
does not compile yet.
- consolidated the 3 identical S_OpenAudio implementations. The replacement code is disabled for the time being because it needs a rewrite. The replacement logic is uses is a bit too volatile.
- removed the old GRP scan code.
Christoph Oelckers