K2 component - now is all clear. Thanks.
---
There you have to make some HTML customization:
templates\shaper_newsplus\html\com_k2\templates\default\category.php
Popular News section begins from (line 278)
<div class="span3 module hot-news-wrapper">
<h3 class="section-title"><span><?php echo JText::_('SP_POPULAR'); ?></span></h3>
If you want to remove just delete whole section, and change "span9" size to "span12" here (line 171):
<div class="span9 categoryLeadingleft">
---
But before please check settings of chosen K2 category.
---
I gave you tips, now your turn.