MAGETWO-53792: Build stabilization for PR

CR fixes

Author: Serhiy Shkolyarenko

app/code/Magento/Checkout/view/frontend/web/js/model/shipping-rates-validator.js

@@ -65,7 +65,6 @@ define(
                 var self = this,
                     elements = shippingRatesValidationRules.getObservableFields();
 
-                //TODO: Split zip code validation and element binding for shipping rates request
                 if ($.inArray(postcodeElementName, elements) === -1) {
                     // Add postcode field to observables if not exist for zip code validation support
                     elements.push(postcodeElementName);

app/code/Magento/GiftMessage/etc/di.xml

@@ -27,6 +27,5 @@
     <type name="Magento\Sales\Api\OrderRepositoryInterface">
         <plugin name="save_gift_message" type="Magento\GiftMessage\Model\Plugin\OrderSave"/>
         <plugin name="get_gift_message" type="Magento\GiftMessage\Model\Plugin\OrderGet"/>
-        <plugin name="add_gift_messages_to_orders" type="Magento\GiftMessage\Model\Plugin\OrderGet"/>
     </type>
 </config>