remover NewtonJson

Assets/HuaweiService/Editor/cloud_db/ClassTemplate.cs

 using System;
-using Newtonsoft.Json;
 using UnityEngine;
 
 namespace HuaweiService.CloudDB.Editor {

Assets/HuaweiService/Editor/cloud_db/CloudDBSetting.cs

 using System;
-using Newtonsoft.Json;
 using UnityEditor;
 using UnityEngine;
 

Assets/HuaweiService/Editor/cloud_db/GenCode.cs

 using System.IO;
-using Newtonsoft.Json;
 using UnityEngine;
 
 namespace HuaweiService.CloudDB.Editor {
                 Directory.CreateDirectory (ExportFileDir);
                 using (StreamReader r = new StreamReader (ObjectTypeFilePath)) {
                     string json = r.ReadToEnd ();
-                    template = JsonConvert.DeserializeObject<ClassTemplate> (json);
+                    template = JsonUtility.FromJson<ClassTemplate> (json);
                     GenerateObjectTypeInfoHelper ();
                     foreach (ObjectType objectType in template.objectTypes) {
                         GenerateModels (objectType);

Assets/HuaweiService/cloud_function/Utils.cs

 using System;
 using System.Collections.Generic;
-using Newtonsoft.Json;
 using UnityEngine;
 
 namespace HuaweiService.CloudFunction {
         }
 
         public static T FromJson<T> (string json) {
-            T m = JsonConvert.DeserializeObject<T> (json);
+            T m = JsonUtility.FromJson<T>(json);
             return m;
         }
     }
         public JsonModel () { }
         public JsonModel (object obj) {
             ClassName = obj.GetType ().Name.ToLower ();
-            ClassValue = JsonConvert.SerializeObject (obj);
+            ClassValue = JsonUtility.ToJson(obj);
         }
 
     }

Assets/HuaweiService/cloud_function/Newtonsoft.Json.dll.meta

-fileFormatVersion: 2
-guid: a80efc5e8faf849ac871faebb4080ea4
-PluginImporter:
-  externalObjects: {}
-  serializedVersion: 2
-  iconMap: {}
-  executionOrder: {}
-  defineConstraints: []
-  isPreloaded: 0
-  isOverridable: 0
-  isExplicitlyReferenced: 0
-  validateReferences: 1
-  platformData:
-  - first:
-      Any: 
-    second:
-      enabled: 1
-      settings: {}
-  - first:
-      Editor: Editor
-    second:
-      enabled: 0
-      settings:
-        DefaultValueInitialized: true
-  - first:
-      Windows Store Apps: WindowsStoreApps
-    second:
-      enabled: 0
-      settings:
-        CPU: AnyCPU
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: