fix 任务代码优化

GameClient/Assets/Game/HotUpdate/Views/Task/CombTaskView.cs

@@ -3,7 +3,6 @@ using ET;
 using FairyGUI;
 using UI.CommonGame;
 using UI.Task;
-using UnityEngine;
 
 namespace GFGGame
 {
@@ -181,8 +180,7 @@ namespace GFGGame
 
         private void OnBtnGoClick(EventContext context)
         {
-            if (!(context.sender is GObject btnGo)) return;
-            var taskCfg = btnGo.data as TaskCfg;
+            if (!(context.sender is GObject { data: TaskCfg taskCfg })) return;
             //功能未开放
             if (!FunctionOpenDataManager.Instance.CheckIsFunOpenById(taskCfg.jumpId)) return;
             Hide();