cull(engine-cleanup): pass-8 phase-2 cascade round 4 after GachaUI stub

SVSim.BattleEngine/Engine/GachaUI.cs

@@ -1,10 +0,0 @@
-// PASS-8/Phase-2 STUB: 1,419-line client-side gacha pack-opening UI reduced to the
-// compile-time surface external callers touch. Held alive by pack-opening flow callers
-// referencing GachaUI.CardPackType enum and GachaUI.IsTsStepupPackId. Two members
-// preserved. See Task 2b of PASS8-PLAN.md.
-public class GachaUI : UIBase
-{
-    public enum CardPackType
-    {
-        NONE}
-}

SVSim.BattleEngine/Engine/Wizard/PackCategory.cs

@@ -3,6 +3,5 @@ namespace Wizard;
 public enum PackCategory
 {
 	None,
-	LegendCardPack,
 	SpecialCardPack,
 	LimitedSpecialCardPack}

SVSim.BattleEngine/Engine/Wizard/PackChildGachaInfo.cs

@@ -1,7 +0,0 @@
-namespace Wizard;
-
-public class PackChildGachaInfo
-{
-
-	public int Cost { get; set; }
-}