Merge bitcoin/bitcoin#27226: test: Use self.wait_until over wait_until_helper

faa6715 test: Use self.wait_until over wait_until_helper (MarcoFalke)

Pull request description:

  `wait_until_helper` is a "private" helper, not intended to be used directly, because it doesn't scale the timeout with the timeout factor. Fix this by replacing it with a call to `self.wait_until`, which does the scaling.

ACKs for top commit:
  theStack:
    Code-review ACK faa6715

Tree-SHA512: 70705f309f83ffd6ea5d090218195d05b868624d909106863372f861138b5a70887070b25beb25044ae1b44250345e45c9cc11191ae7aeca2ad37801a0f62f61

Author: fanquake

test/functional/test_framework/p2p.py

@@ -464,7 +464,7 @@ def test_function():
 
     def wait_for_connect(self, timeout=60):
         test_function = lambda: self.is_connected
-        wait_until_helper(test_function, timeout=timeout, lock=p2p_lock)
+        self.wait_until(test_function, timeout=timeout, check_connected=False)
 
     def wait_for_disconnect(self, timeout=60):
         test_function = lambda: not self.is_connected