Sometimes labels can be unnecessary if you already have them in the blogger sidebar.
How we gonna do it?
Hide labels from Blogger
Step 1. Click 'Layout' tab and go to the 'Edit HTML' Subtab.
First of all, backup your current template to be assured that you won't lose or delete something erroneously (to do that > click download full template)
Step 2. Check 'Expand Widget Templates' option to expand the CSS code.
Step 3. Find the following code in your template.
<b:if cond='data:post.labels'>Step 4. Delete this portion from your template.
<data:postLabelsLabel/>
<b:loop values='data:post.labels' var='label'>
<a expr:href='data:label.url' rel='tag'><data:label.name/></a><b:if cond='data:label.isLast != "true"'>,</b:if>
</b:loop>
</b:if>
Step 5. Save Template. And you're done ;)