Issue #27714: text_textview now passes when re-run in the same process

because test_idle failed while running with test -w (and no -jn).

Lib/idlelib/idle_test/test_textview.py

@@ -22,8 +22,7 @@ def setUpModule():
     root = Tk()
 
 def tearDownModule():
-    global root, TV
-    del TV
+    global root
     root.update_idletasks()
     root.destroy()  # pyflakes falsely sees root as undefined
     del root