bpo-40443: Remove unused imports in idlelib (GH-19801)

diff --git a/Lib/idlelib/configdialog.py b/Lib/idlelib/configdialog.py
index 9d5c2cd..8259649 100644
--- a/Lib/idlelib/configdialog.py
+++ b/Lib/idlelib/configdialog.py
@@ -11,7 +11,7 @@
 """
 import re
 
-from tkinter import (Toplevel, Listbox, Text, Scale, Canvas,
+from tkinter import (Toplevel, Listbox, Scale, Canvas,
                      StringVar, BooleanVar, IntVar, TRUE, FALSE,
                      TOP, BOTTOM, RIGHT, LEFT, SOLID, GROOVE,
                      NONE, BOTH, X, Y, W, E, EW, NS, NSEW, NW,