客户端rsa，冗余清理，bug修复，安卓build问题

Assets/scripts/_runtimecache/DlcOwnershipService.cs

@@ -1,7 +1,7 @@
 using System;
 using System.Collections.Generic;
 using UnityEngine;
-#if !UNITY_WEBGL
+#if UNITY_STANDALONE_WIN || UNITY_STANDALONE_LINUX || UNITY_STANDALONE_OSX || STEAMWORKS_WIN || STEAMWORKS_LIN_OSX
 using Steamworks;
 #endif
 
@@ -118,6 +118,34 @@ public static class DlcOwnershipService
         Cache.Clear();
     }
 
+    public static void ClearLocalPersistence()
+    {
+        dlcData[] allDlcs = RuntimeResourcesCache.LoadAllDlcs();
+        if (allDlcs != null)
+        {
+            for (int i = 0; i < allDlcs.Length; i++)
+            {
+                dlcData dlc = allDlcs[i];
+                if (dlc == null)
+                {
+                    continue;
+                }
+
+                string key = dlc.GetResolvedDlcKey();
+                if (string.IsNullOrWhiteSpace(key))
+                {
+                    continue;
+                }
+
+                PlayerPrefs.DeleteKey(RemoteOwnershipPrefsPrefix + key);
+                PlayerPrefs.DeleteKey(LocalOverridePrefsPrefix + key);
+            }
+        }
+
+        PlayerPrefs.Save();
+        Cache.Clear();
+    }
+
     private static DlcEntitlementState ResolveEntitlement(dlcData dlc, string key)
     {
         if (!dlc.ShouldEnforceEntitlement())
@@ -137,7 +165,7 @@ public static class DlcOwnershipService
             return new DlcEntitlementState(key, true, true, DlcEntitlementSource.LocalFlag);
         }
 
-#if !UNITY_WEBGL
+#if UNITY_STANDALONE_WIN || UNITY_STANDALONE_LINUX || UNITY_STANDALONE_OSX || STEAMWORKS_WIN || STEAMWORKS_LIN_OSX
         if (dlc.steamAppId > 0 && SteamManager.Initialized)
         {
             try