bpo-35202: Remove unused imports in idlelib (GH-10438)

(cherry picked from commit 43a74abb3a87092a7fd6c71042eafb977d70d8e0)

Co-authored-by: Srinivas  Thatiparthy (శ్రీనివాస్  తాటిపర్తి) <thatiparthysreenivas@gmail.com>
diff --git a/Lib/idlelib/codecontext.py b/Lib/idlelib/codecontext.py
index 7c88a4d..ef88528 100644
--- a/Lib/idlelib/codecontext.py
+++ b/Lib/idlelib/codecontext.py
@@ -13,7 +13,7 @@
 from sys import maxsize as INFINITY
 
 import tkinter
-from tkinter.constants import TOP, LEFT, X, W, SUNKEN
+from tkinter.constants import TOP, X, SUNKEN
 
 from idlelib.config import idleConf