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

diff --git a/Lib/idlelib/autocomplete_w.py b/Lib/idlelib/autocomplete_w.py
index 0643c09..fe7a6be 100644
--- a/Lib/idlelib/autocomplete_w.py
+++ b/Lib/idlelib/autocomplete_w.py
@@ -4,7 +4,7 @@
 import platform
 
 from tkinter import *
-from tkinter.ttk import Frame, Scrollbar
+from tkinter.ttk import Scrollbar
 
 from idlelib.autocomplete import FILES, ATTRS
 from idlelib.multicall import MC_SHIFT