Disabling SNI test; server admin would not like us to use it for automated tests.

Lib/test/test_urllib2net.py

@@ -302,13 +302,14 @@ class TimeoutTest(unittest.TestCase):
 class HTTPSTests(unittest.TestCase):
 
     def test_sni(self):
+        self.skipTest("test disabled - test server needed")
         # Checks that Server Name Indication works, if supported by the
         # OpenSSL linked to.
         # The ssl module itself doesn't have server-side support for SNI,
         # so we rely on a third-party test site.
         expect_sni = ssl.HAS_SNI
-        with support.transient_internet("bob.sni.velox.ch"):
-            u = urllib.request.urlopen("https://bob.sni.velox.ch/")
+        with support.transient_internet("XXX"):
+            u = urllib.request.urlopen("XXX")
             contents = u.readall()
             if expect_sni:
                 self.assertIn(b"Great", contents)