Remove extra client_t::csUpdated[] slot

sv.configstrings[] is limited to 0 to MAX_CONFIGSTRINGS-1, make client_t::csUpdated[] the same.

code/server/server.h

@@ -194,7 +194,7 @@ typedef struct client_s {
 #endif
 
 	int				oldServerTime;
-	qboolean		csUpdated[MAX_CONFIGSTRINGS+1];	
+	qboolean		csUpdated[MAX_CONFIGSTRINGS];
 	
 #ifdef LEGACY_PROTOCOL
 	qboolean		compat;