Previously, HOW-TO HOUSE share a tutorial about How To Remove "Subscribe to: Posts (Atom)" in Blogger. In some template, it won't work. So, you can use this method to remove or hide the "Subscribe to: Posts (Atom)". You only need a simple hack code to add into your Edit HTML section.
1. Go to your Dashboard >> Design >> Edit HTML.
2. Search this code (Ctrl + F), ]]></b:skin>
3. Paste the code below, just above ]]></b:skin>
4. Save your template. DONE!
Refresh your blog to see the result.