fix: 去掉不需要的报错

Runtime/Code/SDK/GuruSDK.Analytics.cs

@@ -817,7 +817,6 @@ namespace Guru
         public static void LogEarnVirtualCurrencyByIGC(string currencyName, string spendCurrencyName, int value = 0, int balance = 0, 
             string levelName = "", string scene = "", Dictionary<string, object> extra = null)
         {
-            if (extra.Count == 0) throw new ArgumentException("Value cannot be an empty collection.", nameof(extra));
             string category = Consts.CurrencyCategoryIGC;
             string itemName = spendCurrencyName;
             if (string.IsNullOrEmpty(scene)) scene = Consts.ParameterDefaultScene;