Remove redundant import of tkinter.
diff --git a/Lib/test/test_tk.py b/Lib/test/test_tk.py
index 80316b3..ab979fa 100644
--- a/Lib/test/test_tk.py
+++ b/Lib/test/test_tk.py
@@ -6,9 +6,6 @@
 from tkinter.test import runtktests
 import unittest
 
-
-import tkinter
-
 try:
     tkinter.Button()
 except tkinter.TclError as msg: