gh-84623: Remove unused imports in idlelib (#94143)

Remove commented code in test_debugger_r.py.

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>

Lib/idlelib/iomenu.py

@@ -9,7 +9,6 @@ from tkinter import filedialog
 from tkinter import messagebox
 from tkinter.simpledialog import askstring
 
-import idlelib
 from idlelib.config import idleConf
 from idlelib.util import py_extensions
 
@@ -21,8 +20,7 @@ if sys.platform == 'win32':
 else:
     errors = 'surrogateescape'
 
-
-
+    
 class IOBinding:
 # One instance per editor Window so methods know which to save, close.
 # Open returns focus to self.editwin if aborted.