title: Not able to delete Topics from kafka
body: <p>even after enabling <strong>delete.topic.enable=true</strong> in server.config 
  deletion of topics not working . i am getting following error on recreating the topic again </p>
  
  <pre><code>Topic 'test' already exists.
  [2017-05-23 06:47:05,757] ERROR 
  org.apache.kafka.common.errors.TopicExistsException: Topic 'test' already exists.
  </code></pre>