Remove inheritance relation of AccountUpdateOptions to InstanceUpdateOptions (Azure#27038)

Author: Yao725

sdk/deviceupdate/Azure.ResourceManager.DeviceUpdate/api/Azure.ResourceManager.DeviceUpdate.netstandard2.0.cs

@@ -300,11 +300,12 @@ public ConnectionDetails() { }
         public static bool operator !=(Azure.ResourceManager.DeviceUpdate.Models.CreatedByType left, Azure.ResourceManager.DeviceUpdate.Models.CreatedByType right) { throw null; }
         public override string ToString() { throw null; }
     }
-    public partial class DeviceUpdateAccountUpdateOptions : Azure.ResourceManager.DeviceUpdate.Models.DeviceUpdateInstanceUpdateOptions
+    public partial class DeviceUpdateAccountUpdateOptions
     {
         public DeviceUpdateAccountUpdateOptions() { }
         public Azure.ResourceManager.Models.ManagedServiceIdentity Identity { get { throw null; } set { } }
         public string Location { get { throw null; } set { } }
+        public System.Collections.Generic.IDictionary<string, string> Tags { get { throw null; } }
     }
     public partial class DeviceUpdateInstanceUpdateOptions
     {

sdk/deviceupdate/Azure.ResourceManager.DeviceUpdate/src/Generated/Models/DeviceUpdateAccountUpdateOptions.cs

@@ -29,10 +29,17 @@ directive:
     transform: $['x-ms-client-name'] = 'privateIPAddress'
   - remove-operation: Accounts_Head  # Not supported yet
   - remove-operation: Instances_Head # Not supported yet
-  - rename-model:
-      from: AccountUpdate
-      to: DeviceUpdateAccountUpdateOptions
-  - rename-model:
-      from: TagUpdate
-      to: TagUpdateOptions
+  - from: swagger-document
+    where: $.definitions.AccountUpdate
+    transform: delete $['allOf']
+  - from: swagger-document
+    where: $.definitions.AccountUpdate.properties
+    transform: >
+      $['tags'] = {
+        "type": "object",
+        "description": "List of key value pairs that describe the resource. This will overwrite the existing tags.",
+        "additionalProperties": {
+          "type": "string"
+        }
+      }
 ```