Want to get rid from Subscribe to: Posts (Atom) link at the bottom of your post entry? You can remove it by follow this step. Only 3 steps :
1. As usual, go to your Dashboard > Design > Edit HTML > Check Expand your Widget Templates.
2. Find this code, and delete it :
<b:include data='feedLinks' name='feedLinksBody'/>
3. Save your template. DONE!
GOOD LUCK! :D