/joomla36/templates/jv-allinone/html/com_hikashop/product/show_default.php

<!-- <span class="pull-left title"><?php echo JText::_('TPL_ITEM_PRODUCT_QUANTITY'); ?>:</span> -->

/joomla36/templates/jv-allinone/html/com_hikashop/product/quantity.php
//echo JText::_('NO_STOCK').'<br/>';