bpo-45171: Remove tests of deprecated logger.warn(). (GH-32139)

Lib/logging/__init__.py

@@ -1568,7 +1568,7 @@ def findCaller(self, stack_info=False, stacklevel=1):
         while stacklevel > 0:
             next_f = f.f_back
             if next_f is None:
-                ##TODO: We've got options here
+                ## We've got options here.
                 ## If we want to use the last (deepest) frame:
                 break
                 ## If we want to mimic the warnings module:

Lib/test/test_logging.py

@@ -5075,9 +5075,6 @@ def outer():
         self.assertEqual(records[-1].funcName, 'outer')
         self.assertGreater(records[-1].lineno, lineno)
         lineno = records[-1].lineno
-        trigger = self.logger.warn
-        outer()
-        self.assertEqual(records[-1].funcName, 'outer')
         root_logger = logging.getLogger()
         root_logger.addHandler(self.recording)
         trigger = logging.warning