No PO Boxes in Shipment Address Magento 1.9 - part 1

<?php $_streetValidationClass = $this->helper('customer/address')->getAttributeValidationClass('street'); ?>
                <li class="wide">
                    <label for="billing:street1" class="required"><em>*</em><?php echo $this->__('Address') ?></label>
                    <div class="input-box">
                        <input type="text" title="<?php echo $this->__('Street Address') ?>" name="billing[street][]" id="billing:street1" value="<?php echo $this->escapeHtml($this->getAddress()->getStreet(1)) ?>" class="input-text validate-pobox <?php echo $_streetValidationClass ?>" />
                    </div>
                </li>
        <?php $_streetValidationClass = trim(str_replace('required-entry', '', $_streetValidationClass)); ?>
        <?php for ($_i = 2, $_n = $this->helper('customer/address')->getStreetLines(); $_i <= $_n; $_i++): ?>
                <li class="wide">
                    <div class="input-box">
                        <input type="text" title="<?php echo $this->__('Street Address %s', $_i) ?>" name="billing[street][]" id="billing:street<?php echo $_i ?>" value="<?php echo $this->escapeHtml($this->getAddress()->getStreet($_i)) ?>" class="input-text validate-pobox2 <?php echo $_streetValidationClass ?>" />
                    </div>
                </li>
        <?php endfor; ?>