Prune some remnants of DSA client certificate support.

net/tools/testserver/testserver.py

 #!/usr/bin/env python
 # Copyright 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """This is a simple HTTP/FTP/TCP/UDP/BASIC_AUTH_PROXY/WEBSOCKET server used for
 testing Chrome.
 
 It supports several test URLs, as specified by the handlers in TestPageHandler.
 By default, it listens on an ephemeral port and sends the port number back to
@@ skipping 171 matching lines @@
     if ssl_client_auth:
       for ca_file in ssl_client_cas:
         s = open(ca_file).read()
         x509 = tlslite.api.X509()
         x509.parse(s)
         self.ssl_client_cas.append(x509.subject)
 
       for cert_type in ssl_client_cert_types:
         self.ssl_client_cert_types.append({
             "rsa_sign": tlslite.api.ClientCertificateType.rsa_sign,
-            "dss_sign": tlslite.api.ClientCertificateType.dss_sign,
             "ecdsa_sign": tlslite.api.ClientCertificateType.ecdsa_sign,
             }[cert_type])
 
     self.ssl_handshake_settings = tlslite.api.HandshakeSettings()
     # Enable SSLv3 for testing purposes.
     self.ssl_handshake_settings.minVersion = (3, 0)
     if ssl_bulk_ciphers is not None:
       self.ssl_handshake_settings.cipherNames = ssl_bulk_ciphers
     if ssl_key_exchanges is not None:
       self.ssl_handshake_settings.keyExchangeNames = ssl_key_exchanges
@@ skipping 2097 matching lines @@
                                   'alert immediately after the handshake.')
     self.option_parser.add_option('--no-anonymous-ftp-user',
                                   dest='no_anonymous_ftp_user',
                                   default=False, action='store_true',
                                   help='If set, the FTP server will not create '
                                   'an anonymous user.')
 
 
 if __name__ == '__main__':
   sys.exit(ServerRunner().main())