MAGETWO-55380: Information hint block for Zip/Postal Code should NOT block request for available shipping solution

Author: irenelagno

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

@@ -127,9 +127,8 @@ define(
                     element.on('value', function () {
                         clearTimeout(self.validateAddressTimeout);
                         self.validateAddressTimeout = setTimeout(function () {
-                            if (self.postcodeValidation()) {
-                                self.validateFields();
-                            }
+                            self.postcodeValidation();
+                            self.validateFields();
                         }, delay);
                     });
                     observedElements.push(element);