wallet, rpc: deprecate settxfee and paytxfee

test/functional/test_framework/test_framework.py

@@ -598,9 +598,9 @@ class BitcoinTestFramework(metaclass=BitcoinTestMetaClass):
             # Wait for nodes to stop
             node.wait_until_stopped()
 
-    def restart_node(self, i, extra_args=None, clear_addrman=False):
+    def restart_node(self, i, extra_args=None, clear_addrman=False, *, expected_stderr=''):
         """Stop and start a test node"""
-        self.stop_node(i)
+        self.stop_node(i, expected_stderr=expected_stderr)
         if clear_addrman:
             peers_dat = self.nodes[i].chain_path / "peers.dat"
             os.remove(peers_dat)