Tidy up PR

RNS/Link.py

@@ -22,8 +22,8 @@
 
 from RNS.Cryptography import X25519PrivateKey, X25519PublicKey, Ed25519PrivateKey, Ed25519PublicKey
 from RNS.Cryptography import Fernet
-
 from RNS.Channel import Channel, LinkChannelOutlet
+
 from time import sleep
 from .vendor import umsgpack as umsgpack
 import threading