Remove 'XXX' comments after resolving related question in review.

Author: tseaver

bigquery/google/cloud/bigquery/job.py

@@ -1072,12 +1072,10 @@ def max_bad_records(self):
         See
         https://cloud.google.com/bigquery/docs/reference/rest/v2/jobs#configuration.load.maxBadRecords
         """
-        # XXX: should this coerce from str, like 'skip_leading_rows' below?
-        return self._get_sub_prop('maxBadRecords')
+        return _helpers._int_or_none(self._get_sub_prop('maxBadRecords'))
 
     @max_bad_records.setter
     def max_bad_records(self, value):
-        # XXX: should this coerce to str, like 'skip_leading_rows' below?
         self._set_sub_prop('maxBadRecords', value)
 
     @property

bigquery/tests/unit/test_job.py

@@ -1592,7 +1592,6 @@ def test_skip_leading_rows_setter(self):
         config.skip_leading_rows = skip_leading_rows
         self.assertEqual(
             config._properties['load']['skipLeadingRows'],
-            # XXX: Should this really be a str?
             str(skip_leading_rows))
 
     def test_source_format_missing(self):