Remove CloudFront/Custom/Util/_bcl/AmazonCloudFrontUtil.cs as unused …

…code

generator/.DevConfigs/0C9C1129-CEB5-41BA-B24F-95A5E89E4573.json

@@ -1,5 +1,12 @@
 {
   "services": [
+    {
+      "serviceName": "CloudFront",
+      "type": "patch",
+      "changeLogMessages": [
+        "Removed the AmazonCloudFrontUtil utility code that was no longer being used."
+      ]
+    },  
     {
       "serviceName": "DynamoDBv2",
       "type": "patch",
@@ -30,7 +37,7 @@
       ]
     },
     {
-      "serviceName": "SageMagerRuntime",
+      "serviceName": "SageMakerRuntime",
       "type": "patch",
       "changeLogMessages": [
         "Removed obsolete constructors for PayloadPart."

sdk/src/Services/CloudFormation/Custom/Model/UpdateStackRequest.Extensions.cs

@@ -33,7 +33,7 @@ public partial class UpdateStackRequest : AmazonCloudFormationRequest
         /// </summary>
         public UpdateStackRequest()
         {
-            this._notificationARNs = new AutoConstructedList<string>();
+            this._notificationARNs = AWSConfigs.InitializeCollections ? new AutoConstructedList<string>() : null;
         }
     }
 }