A couple of the Intl tests made calls to getDefaultTimeZone(), which
doesn't exist in V8; however, these were not core to the test. Rather
than marking the whole test as failing, just comment out that
unimportant part of the test.

R=adamk

Review URL: https://codereview.chromium.org/1522533003

Cr-Commit-Position: refs/heads/master@{#32819}