Remove SingleNodeConnCB

This commit merges the NodeConnCB and SingleNodeConnCB into a single
class (called NodeConnCB). The original intent for the NodeConnCB was to
be able to have a python 'mininode' connect to multiple running
bitcoinds. This has never been used and can be achieved more easily by
having multiple NodeConns backed by a common datastore if it is ever
needed.

The changes in mininode.py are just code moves (and merging the two
classes into a single class). The code changes in the individual test
cases are changing the subclasses to subclass from NodeConnCB instead of
SingleNodeConnCB. There is a lot of duplicate code in the subclasses
that can be removed in future commits.

1 files changed, 2 insertions, 2 deletions

diff --git a/test/functional/p2p-feefilter.py b/test/functional/p2p-feefilter.py
index d8f07700d0..12539be950 100755
--- a/test/functional/p2p-feefilter.py
+++ b/test/functional/p2p-feefilter.py
@@ -24,9 +24,9 @@ def allInvsMatch(invsExpected, testnode):
 
 # TestNode: bare-bones "peer".  Used to track which invs are received from a node
 # and to send the node feefilter messages.
-class TestNode(SingleNodeConnCB):
+class TestNode(NodeConnCB):
     def __init__(self):
-        SingleNodeConnCB.__init__(self)
+        super().__init__()
         self.txinvs = []
 
     def on_inv(self, conn, message):