- removed the ActiveSequences counter.

It was only used to avoid traversing the list if all sequences were paused which is an exceptional situation.
On the other hand, the way it counted was not correct so rather than fixing it it seemed more appropriate to remove it entirely.

src/p_saveg.cpp

@@ -932,7 +932,6 @@ void FLevelLocals::Serialize(FSerializer &arc, bool hubload)
 		Thinkers.DestroyAllThinkers();
 		interpolator.ClearInterpolations();
 		arc.ReadObjects(hubload);
-		ActiveSequences = 0;
 	}
 
 	arc("multiplayer", multiplayer);