MINOR: Update docs wrt topic deletion being enabled by default
Author: Manikumar Reddy
Reviewers: Ismael Juma
Closes from omkreddy/update-delete-topic-doc
<pre class="brush: bash;">
&gt; bin/kafka-topics.sh --zookeeper zk_host:port/chroot --delete --topic my_topic_name
</pre>
- Topic deletion option is disabled by default. To enable it set the server config
- <pre class="brush: text;">delete.topic.enable=true</pre>
<p>
Kafka does not currently support reducing the number of partitions for a topic.
<p>
