fix：1、删除max广告。2、更换sdk

Assets/MaxSdk/Scripts/MaxSdk.cs

@@ -1,26 +0,0 @@
-//
-// AppLovin MAX Unity Plugin C# Wrapper
-//
-
-public class MaxSdk :
-#if UNITY_EDITOR
-    // Check for Unity Editor first since the editor also responds to the currently selected platform.
-    MaxSdkUnityEditor
-#elif UNITY_ANDROID
-    MaxSdkAndroid
-#elif UNITY_IPHONE || UNITY_IOS
-    MaxSdkiOS
-#else
-    MaxSdkUnityEditor
-#endif
-{
-    private const string _version = "8.6.2";
-
-    /// <summary>
-    /// Returns the current plugin version.
-    /// </summary>
-    public static string Version
-    {
-        get { return _version; }
-    }
-}