Issue #27310: remove vestigial import in IDLE.app
diff --git a/Mac/IDLE/idlemain.py b/Mac/IDLE/idlemain.py
index 8b8beb9..986760d 100644
--- a/Mac/IDLE/idlemain.py
+++ b/Mac/IDLE/idlemain.py
@@ -68,8 +68,6 @@
         break
 
 # Now it is safe to import idlelib.
-from idlelib import macosxSupport
-macosxSupport._appbundle = True
 from idlelib.PyShell import main
 if __name__ == '__main__':
     main()