Remove dead code

See 5c769632e8.

slixmpp/basexmpp.py

@@ -687,7 +687,6 @@ class BaseXMPP(XMLStream):
             self.address = (host, port)
             self.default_domain = host
             self.dns_records = None
-            self.reconnect_delay = None
             self.reconnect()
 
     def _handle_message(self, msg):

slixmpp/test/slixtest.py

@@ -340,9 +340,6 @@ class SlixTest(unittest.TestCase):
         self.xmpp.default_lang = None
         self.xmpp.peer_default_lang = None
 
-        # Simulate connecting for mock sockets.
-        self.xmpp.auto_reconnect = False
-
         # Must have the stream header ready for xmpp.process() to work.
         if not header:
             header = self.xmpp.stream_header