Update region tag for Cloud Tasks snippets (#2350)

Author: averikitsch

appengine/flexible/tasks/snippets.py

@@ -221,14 +221,14 @@ def pause_queue(project, location, queue):
 
 
 def delete_queue(project, location, queue):
+    # [START taskqueues_deleting_queues]
     client = tasks.CloudTasksClient()
 
     # TODO(developer): Uncomment these lines and replace with your values.
     # project = 'my-project-id'
     # location = 'us- central1'
     # queue = 'queue1'
 
-    # [START taskqueues_deleting_queues]
     queue_path = client.queue_path(project, location, queue)
     response = client.delete_queue(queue_path)
     # [END taskqueues_deleting_queues]