Make pylint happy

Not sure why it fails now, but happy previously.

libp2p/routing/interfaces.py

@@ -28,4 +28,4 @@ class IPeerRouting(ABC):
         Find specific Peer
         FindPeer searches for a peer with given peer_id, returns a peer.PeerInfo
         with relevant addresses.
-        """
+        """

libp2p/routing/kademlia/kademlia_content_router.py

@@ -11,11 +11,9 @@ class KadmeliaContentRouter(IContentRouting):
         """
         # the DHT finds the closest peers to `key` using the `FIND_NODE` RPC
         # then sends a `ADD_PROVIDER` RPC with its own `PeerInfo` to each of these peers.
-        pass
 
     def find_provider_iter(self, cid, count):
         """
         Search for peers who are able to provide a given key
         returns an iterator of peer.PeerInfo
         """
-        pass