remove examples/dns.py

examples/dns.py

-#!/usr/bin/env python
-
-import socket
-import gevent
-from gevent import core
-from gevent.socket import getaddrinfo, getnameinfo
-import traceback
-
-def test():
-    try:
-        print 'gevent socket:'
-        print getaddrinfo('www.google.com', 80)
-        print getnameinfo(('17.251.200.70', 80), 0)
-        print getaddrinfo('fake', 0)
-    except socket.gaierror, e:
-        traceback.print_exc()
-
-if not core.HAS_EVDNS:
-    print "*** WARNING: libevent doesn't have evdns support ***"
-gevent.spawn(test).join()
-
-core.dns_shutdown()
-
-print 'stdlib socket:'
-try:
-    print socket.getaddrinfo('www.google.com', 80)
-    print socket.getnameinfo(('17.251.200.70', 80), 0)
-    print socket.getaddrinfo('fake', 0)
-except socket.gaierror, e:
-    traceback.print_exc()