If you want it removed, here is the tricks that will remove that "showing posts with label" for blogger.
Step 1.
Go to blogger dashboard > Edit HTML > Click on expand template (make a back just in case).
Step 2.
Use CTRL+F and find this code in the template.
<b:includable id='status-message'>
<b:if cond='data:navMessage'>
<div class='status-msg-wrap'>
<div class='status-msg-body'>
<data:navMessage/>
</div>
<div class='status-msg-border'>
<div class='status-msg-bg'>
<div class='status-msg-hidden'><data:navMessage/></div>
</div>
</div>
</div>
<div style='clear: both;'/>
</b:if>
</b:includable>
Step 3.
After you find it, delete the code above and replace it with this one.
<b:includable id='status-message'>
<b:if cond='data:navMessage'>
<div>
</div>
<div style='clear: both;'/>
</b:if>
</b:includable>
Save template and that is all.
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