test: Establish only one connection between nodes in rpc_invalidateblock

Author: MarcoFalke

test/functional/rpc_invalidateblock.py

@@ -8,7 +8,7 @@
 from test_framework.address import ADDRESS_BCRT1_UNSPENDABLE
 from test_framework.util import (
     assert_equal,
-    connect_nodes_bi,
+    connect_nodes,
     wait_until,
 )
 
@@ -33,7 +33,7 @@ def run_test(self):
         assert_equal(self.nodes[1].getblockcount(), 6)
 
         self.log.info("Connect nodes to force a reorg")
-        connect_nodes_bi(self.nodes, 0, 1)
+        connect_nodes(self.nodes[0], 1)
         self.sync_blocks(self.nodes[0:2])
         assert_equal(self.nodes[0].getblockcount(), 6)
         badhash = self.nodes[1].getblockhash(2)
@@ -44,7 +44,7 @@ def run_test(self):
         assert_equal(self.nodes[0].getbestblockhash(), besthash_n0)
 
         self.log.info("Make sure we won't reorg to a lower work chain:")
-        connect_nodes_bi(self.nodes, 1, 2)
+        connect_nodes(self.nodes[1], 2)
         self.log.info("Sync node 2 to node 1 so both have 6 blocks")
         self.sync_blocks(self.nodes[1:3])
         assert_equal(self.nodes[2].getblockcount(), 6)