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

SVSim.BattleEngine/Shim/UnityEngine/UnityShim.cs

@@ -310,7 +310,6 @@ namespace UnityEngine
     public enum WrapMode { Once = 1, Default = 0}
     public struct Keyframe { public float time; public float value; public float inTangent; public float outTangent; public Keyframe(float t, float v) { time = t; value = v; inTangent = 0; outTangent = 0; } public Keyframe(float t, float v, float inT, float outT) { time = t; value = v; inTangent = inT; outTangent = outT; } }
     public struct AnimatorStateInfo { public bool IsName(string name) => false; public float normalizedTime => 0f; public int fullPathHash => 0; public float length => 0f; }
-    public class RenderTexture : Texture { public RenderTexture(int w, int h, int depth) { } public RenderTexture(int w, int h, int depth, RenderTextureFormat fmt) { } }
     public partial class Sprite : Object { public Rect rect => default; public Texture2D texture => null; }
     public partial class Shader : Object { public static Shader Find(string n) => null; }
     public partial class Animation : Component, IEnumerable { public bool isPlaying => false; public void Play() { } public void Play(string n) { } public IEnumerator GetEnumerator() { yield break; } }