remove global decl about unused variable
diff --git a/Lib/ftplib.py b/Lib/ftplib.py
index 1688d9a..3263281 100644
--- a/Lib/ftplib.py
+++ b/Lib/ftplib.py
@@ -245,7 +245,6 @@
 
     def makeport(self):
         '''Create a new socket and send a PORT command for it.'''
-        global nextport
         sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
         sock.bind(('', 0))
         sock.listen(1)