Fix foss build

When the domain-contact-postalInfos-footer was self-closed, the resulting contact-postalInfo element improperly included the following hidden input tag. Now that the tag is properly closed, the number of elements in contact-postalInfo should be reduced by 1 (the currently expected numbers are wrong and supposedly were there to have the tests pass).

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=169096690

javatests/google/registry/ui/js/registrar/contact_test.js

@@ -110,7 +110,7 @@ function testVisitContact() {
         '  </response>' +
         '</epp>'
   });
-  assertEquals(3, $('contact-postalInfo').childNodes.length);
+  assertEquals(2, $('contact-postalInfo').childNodes.length);
 }
 
 
@@ -131,5 +131,5 @@ function testAddPostalInfo() {
   assertNull(addPiBtn.getAttribute('disabled'));
   registry.testing.click(addPiBtn);
   assertTrue(addPiBtn.hasAttribute('disabled'));
-  assertEquals(4, $('contact-postalInfo').childNodes.length);
+  assertEquals(3, $('contact-postalInfo').childNodes.length);
 }