Remove this part of the code :
<div class="o-empty"> <div class="o-empty__content"> <i class="o-empty__icon fa fa-comments-o"></i> <div class="o-empty__text t-lg-mt--md"><?php echo JText::_('COM_KOMENTO_NO_COMMENTS_POSTED_YET'); ?></div> </div> </div>
and the ‘no comments posted’ section will be gone.