- made the corpse queue a simple array in FLevelLocals.

I have to wonder why it had to use such a complicated implementation that provided no advantages whatsoever.
The new code is just 1/5th of the old one's size and much closer to Hexen's original implementation which also was a simple array but with no means to resize the queue.

src/p_setup.cpp

@@ -275,6 +275,7 @@ void FLevelLocals::ClearLevelData()
 	ClearPortals();
 
 	SpotState = nullptr;
+	CorpseQueue.Clear();
 	canvasTextureInfo.EmptyList();
 	sections.Clear();
 	segs.Clear();