UDPNetworkUtility is a singleton, disabled InCombat scene

I found incombat to be way too finicky to keep up to date, so I disabled
it for now.

client/scenes/clean_up.cpp

@@ -31,13 +31,11 @@
 //-------------------------
 
 CleanUp::CleanUp(
-	UDPNetworkUtility* const argNetwork,
 	int* const argClientIndex,
 	int* const argAccountIndex,
 	int* const argCharacterIndex,
 	CharacterMap* argCharacterMap
 	):
-	network(*argNetwork),
 	clientIndex(*argClientIndex),
 	accountIndex(*argAccountIndex),
 	characterIndex(*argCharacterIndex),