message: test: Remove unused connect_nodes_bi
diff: @@ -377,10 +377,6 @@ def connect_nodes(from_connection, node_num):
  # with transaction relaying
  wait_until(lambda: all(peer['version'] != 0 for peer in from_connection.getpeerinfo()))
  -def connect_nodes_bi(nodes, a, b):
  - connect_nodes(nodes[a], b)
  - connect_nodes(nodes[b], a)
  -
  def sync_blocks(rpc_connections, *, wait=1, timeout=60):
  """
  Wait until everybody has the same tip.
  