docs: remove misleading info from will-finish-launching docs (#37514)

docs/api/app.md

@@ -23,8 +23,7 @@ The `app` object emits the following events:
 Emitted when the application has finished basic startup. On Windows and Linux,
 the `will-finish-launching` event is the same as the `ready` event; on macOS,
 this event represents the `applicationWillFinishLaunching` notification of
-`NSApplication`. You would usually set up listeners for the `open-file` and
-`open-url` events here, and start the crash reporter and auto updater.
+`NSApplication`.
 
 In most cases, you should do everything in the `ready` event handler.