It normally appears at the end of the page and after every post which is viewed individually.
Atom feeds work in a very similar way to RSS, and there is very little difference for either publishers or those who choose to subscribe.On the main pages, this will link to the main site feed, whereas on post pages, this will link to the comments feed for a particular post.

Lets see how this can be achieved:
1.Sign in to your blogger dashboard>click the 'Layout' button.

2.Click on the 'Edit HTML' tab

3. Click the 'Expand Widgets Templates' box.

4. Find:
<b:include name='feedLinks'/>
And delete it!
5. Now save the template and Subscribe To Post Atoms is gone from your blog.