enable new mpg generator for Azure.ResourceManager.Dell.Storage (Azure#52894)

Author: live1206

doc/GeneratorMigration/Library_Inventory.md

@@ -217,6 +217,7 @@ TypeSpec with @azure-typespec/http-client-csharp-mgmt generator is detected by t
 | Service | Library | Path |
 | ------- | ------- | ---- |
 | computerecommender | Azure.ResourceManager.Compute.Recommender | sdk/computerecommender/Azure.ResourceManager.Compute.Recommender |
+| dellstorage | Azure.ResourceManager.Dell.Storage | sdk/dellstorage/Azure.ResourceManager.Dell.Storage |
 | hybridkubernetes | Azure.ResourceManager.Kubernetes | sdk/hybridkubernetes/Azure.ResourceManager.Kubernetes |
 | lambdatesthyperexecute | Azure.ResourceManager.LambdaTestHyperExecute | sdk/lambdatesthyperexecute/Azure.ResourceManager.LambdaTestHyperExecute |
 | pineconevectordb | Azure.ResourceManager.PineconeVectorDB | sdk/pineconevectordb/Azure.ResourceManager.PineconeVectorDB |
@@ -246,7 +247,6 @@ TypeSpec with old generator is detected by the presence of a tsp-location.yaml f
 | containerorchestratorruntime | Azure.ResourceManager.ContainerOrchestratorRuntime | sdk/containerorchestratorruntime/Azure.ResourceManager.ContainerOrchestratorRuntime |
 | databasewatcher | Azure.ResourceManager.DatabaseWatcher | sdk/databasewatcher/Azure.ResourceManager.DatabaseWatcher |
 | databox | Azure.ResourceManager.DataBox | sdk/databox/Azure.ResourceManager.DataBox |
-| dellstorage | Azure.ResourceManager.Dell.Storage | sdk/dellstorage/Azure.ResourceManager.Dell.Storage |
 | dependencymap | Azure.ResourceManager.DependencyMap | sdk/dependencymap/Azure.ResourceManager.DependencyMap |
 | deviceprovisioningservices | Azure.ResourceManager.DeviceProvisioningServices | sdk/deviceprovisioningservices/Azure.ResourceManager.DeviceProvisioningServices |
 | deviceregistry | Azure.ResourceManager.DeviceRegistry | sdk/deviceregistry/Azure.ResourceManager.DeviceRegistry |

sdk/dellstorage/Azure.ResourceManager.Dell.Storage/api/Azure.ResourceManager.Dell.Storage.net8.0.cs

@@ -3,14 +3,10 @@
 
 #nullable disable
 
-using System;
-using System.Collections.Generic;
-using Azure.Core;
-
 namespace Azure.ResourceManager.Dell.Storage.Models
 {
     /// <summary> The updatable properties of the FileSystemResource. </summary>
-    [CodeGenModel("FileSystemResourceUpdateProperties")]
+    [CodeGenType("FileSystemResourceUpdateProperties")]
     public partial class DellFileSystemPatchProperties
     {
     }