1. Go to "Template"
2. "Edit HTML"
3. Press [CTRL + F] to open search box.
4. Now copy and paste this code </head> to the search box and press "Enter".
<blockquote>
<b:if cond='data:blog.pageType == "static_page"'>
<style>
#comments {
display: none;
}
</style>
</b:if> </blockquote>
6. Click "Save Template"
Now your comment box will disappear from all of your blogger pages.