sslutil: remove out of place comment

This comment likely got orphaned as a result of refactoring in this
file. It isn't providing any useful value. So delete it.

mercurial/sslutil.py

@@ -328,10 +328,6 b' def _verifycert(cert, hostname):'
             return _('certificate is for %s') % certname
     return _('no commonName or subjectAltName found in certificate')
 
-
-# CERT_REQUIRED means fetch the cert from the server all the time AND
-# validate it against the CA store provided in web.cacerts.
-
 def _plainapplepython():
     """return true if this seems to be a pure Apple Python that
     * is unfrozen and presumably has the whole mercurial module in the file