magento/graphql-ce#914: [Customer] Improve consistency of country field in customer address

Author: lenaorobei

dev/tests/api-functional/testsuite/Magento/GraphQl/Customer/UpdateCustomerAddressTest.php

@@ -516,69 +516,6 @@ private function getMutation(int $addressId): string
     default_billing
   }
 }
-MUTATION;
-        return $mutation;
-    }
-
-    /**
-     * @param int $addressId
-     * @return string
-     */
-    private function getMutationWithCountryCode(int $addressId): string
-    {
-        $updateAddress = $this->getAddressDataCanadaCountry();
-        $defaultShippingText = $updateAddress['default_shipping'] ? 'true' : 'false';
-        $defaultBillingText = $updateAddress['default_billing'] ? 'true' : 'false';
-
-        $mutation
-            = <<<MUTATION
-mutation {
-  updateCustomerAddress(id: {$addressId}, input: {
-    region: {
-        region: "{$updateAddress['region']['region']}"
-        region_id: {$updateAddress['region']['region_id']}
-        region_code: "{$updateAddress['region']['region_code']}"
-    }
-    country_code: {$updateAddress['country_code']}
-    street: ["{$updateAddress['street'][0]}","{$updateAddress['street'][1]}"]
-    company: "{$updateAddress['company']}"
-    telephone: "{$updateAddress['telephone']}"
-    fax: "{$updateAddress['fax']}"
-    postcode: "{$updateAddress['postcode']}"
-    city: "{$updateAddress['city']}"
-    firstname: "{$updateAddress['firstname']}"
-    lastname: "{$updateAddress['lastname']}"
-    middlename: "{$updateAddress['middlename']}"
-    prefix: "{$updateAddress['prefix']}"
-    suffix: "{$updateAddress['suffix']}"
-    vat_id: "{$updateAddress['vat_id']}"
-    default_shipping: {$defaultShippingText}
-    default_billing: {$defaultBillingText}
-  }) {
-    id
-    customer_id
-    region {
-      region
-      region_id
-      region_code
-    }
-    country_code
-    street
-    company
-    telephone
-    fax
-    postcode
-    city
-    firstname
-    lastname
-    middlename
-    prefix
-    suffix
-    vat_id
-    default_shipping
-    default_billing
-  }
-}
 MUTATION;
         return $mutation;
     }