mail: drop python 2.5 support

mercurial/mail.py

@@ -70,7 +70,6 class STARTTLS(smtplib.SMTP):
             self.does_esmtp = 0
         return (resp, reply)
 
-if util.safehasattr(smtplib.SMTP, '_get_socket'):
     class SMTPS(smtplib.SMTP):
         '''Derived class to verify the peer certificate for SMTPS.
 
@@ -92,9 +91,6 if util.safehasattr(smtplib.SMTP, '_get_
                                             **self._sslkwargs)
             self.file = smtplib.SSLFakeFile(new_socket)
             return new_socket
-else:
-    def SMTPS(sslkwargs, keyfile=None, certfile=None, **kwargs):
-        raise error.Abort(_('SMTPS requires Python 2.6 or later'))
 
 def _smtp(ui):
     '''build an smtp connection and return a function to send mail'''