diff --git a/Lib/idlelib/configDialog.py b/Lib/idlelib/configDialog.py
index 671882b..e0f6907 100644
--- a/Lib/idlelib/configDialog.py
+++ b/Lib/idlelib/configDialog.py
@@ -500,6 +500,16 @@
         self.autoSave.trace_variable('w', self.VarChanged_autoSave)
         self.encoding.trace_variable('w', self.VarChanged_encoding)
 
+    def remove_var_callbacks(self):
+        for var in (
+                self.fontSize, self.fontName, self.fontBold,
+                self.spaceNum, self.colour, self.builtinTheme,
+                self.customTheme, self.themeIsBuiltin, self.highlightTarget,
+                self.keyBinding, self.builtinKeys, self.customKeys,
+                self.keysAreBuiltin, self.winWidth, self.winHeight,
+                self.startupEdit, self.autoSave, self.encoding,):
+            var.trace_vdelete('w', var.trace_vinfo()[0][1])
+
     def VarChanged_font(self, *params):
         '''When one font attribute changes, save them all, as they are
         not independent from each other. In particular, when we are
diff --git a/Lib/idlelib/idle_test/test_configdialog.py b/Lib/idlelib/idle_test/test_configdialog.py
index 3fbc822..6302164 100644
--- a/Lib/idlelib/idle_test/test_configdialog.py
+++ b/Lib/idlelib/idle_test/test_configdialog.py
@@ -25,6 +25,7 @@
 
     def test_dialog(self):
         d=ConfigDialog(self.root, 'Test', _utest=True)
+        d.remove_var_callbacks()
         d.destroy()
 
 
diff --git a/Lib/idlelib/idle_test/test_warning.py b/Lib/idlelib/idle_test/test_warning.py
index 26710f1..da1d8a1 100644
--- a/Lib/idlelib/idle_test/test_warning.py
+++ b/Lib/idlelib/idle_test/test_warning.py
@@ -68,15 +68,6 @@
                     'Test', UserWarning, 'test_warning.py', 99, f, 'Line of code')
             self.assertEqual(shellmsg.splitlines(), f.getvalue().splitlines())
 
-class ImportWarnTest(unittest.TestCase):
-    def test_idlever(self):
-        with warnings.catch_warnings(record=True) as w:
-            warnings.simplefilter("always")
-            import idlelib.idlever
-            self.assertEqual(len(w), 1)
-            self.assertTrue(issubclass(w[-1].category, DeprecationWarning))
-            self.assertIn("version", str(w[-1].message))
-
 
 if __name__ == '__main__':
     unittest.main(verbosity=2, exit=False)