Admin => Edit Templates
Customer/home.tpl
Edit this file.
At the bottom you will see
Code:
{include file="news.tpl"}
Change this to
Code:
{* include file="news.tpl" *}
What you have done is changed this Smarty include (it is now a comment and not an actual element to be parsed) so that it won't add the news.tpl component to the site.