Remove Subscribe to: Posts (Atom) Link

1. Login to your Blogger Account

2. Go to Design > Edit HTML

3. Click on the Check box which says "Expand Widget Templates"

4. Now Find this line of code in your template( Use Ctrl + F )

<b:include data='feedLinks' name='feedLinksBody'/>

5.Delete this line

6.Save your Template and the "Subscribe to: Posts(Atom)" link will be completely removed from your Blog.

Source: http://www.bloggerplugins.org/2007/07/remove-subscribe-to-posts-atom-link.html