去掉IAP Tip，由客户端自己实现

Runtime/GuruSDKService.IAP.cs

@@ -114,7 +114,5 @@ namespace GuruService
 
         public static void ShowIAPLoadingView() => _serviceImp.ShowIAPBuyLoadingView();
         public static void CloseIAPLoadingView() => _serviceImp.CloseIAPLoadingView();
-        public static void IAPBuySuccessTip() => _serviceImp.IAPBuySuccessTip();
-        public static void IAPBuyFailTip() => _serviceImp.IAPBuyFailTip();
     }
 }

Runtime/GuruSDKServiceImpBase.cs

@@ -139,13 +139,5 @@ namespace GuruService
         public virtual void CloseIAPLoadingView()
         {
         }
-
-        public virtual void IAPBuySuccessTip()
-        {
-        }
-
-        public virtual void IAPBuyFailTip()
-        {
-        }
     }
 }

Runtime/IGuruSDKServiceImp.cs

@@ -61,8 +61,6 @@ namespace GuruService
 
         void ShowIAPBuyLoadingView();
         void CloseIAPLoadingView();
-        void IAPBuySuccessTip();
-        void IAPBuyFailTip();
 
         #endregion
     }