remove obscure example twisted_ex1.py

examples/twisted_ex1.py

@@ -1,37 +0,0 @@
-from twisted.internet.protocol import Protocol, Factory
-from twisted.internet import reactor
-
-from eventlet.green import socket
-from eventlet.api import spawn
-from eventlet import coros
-
-class Echo(Protocol):
-    def dataReceived(self, data):
-        print 'server received: %r' % data
-        self.transport.write('you said %s' % data)
-
-factory = Factory()
-factory.protocol = Echo
-reactor.listenTCP(34567, factory)
-
-N=4
-count = coros.metaphore()
-count.inc(N)
-
-def client():
-    try:
-        c = socket.socket()
-        c.connect(('127.0.0.1', 34567))
-        c.send('hello')
-        print 'client received: %s' % c.recv(1024)
-        c.send('bye')
-        print 'client received: %s' % c.recv(1024)
-    finally:
-        count.dec()
-
-for x in range(N):
-    # note that spawn doesn't switch to new greenlet immediately.
-    spawn(client)
-
-# the execution ends with the main greenlet's exit (by design), so we need to pause here
-count.wait()