Instruction text about date format defined in cp.php

[helloDanuk]

Bug description

The instruction text in system.php says that the date format for CP routes can be changed in cp.php.
But there is no such option in cp.php for Statamic 6 anymore.

How to reproduce

Text in config/statamic/system.php

Logs

Environment

Environment
Application Name: Statamic
Laravel Version: 12.50.0
PHP Version: 8.3.30
Composer Version: 2.9.3
Environment: local
Debug Mode: ENABLED
URL: date-test.test
Maintenance Mode: OFF
Timezone: UTC
Locale: en

Cache
Config: NOT CACHED
Events: NOT CACHED
Routes: NOT CACHED
Views: CACHED

Drivers
Broadcasting: log
Cache: file
Database: sqlite
Logs: stack / single
Mail: log
Queue: sync
Session: file

Storage
public/storage: NOT LINKED

Statamic
Addons: 0
Sites: 1
Stache Watcher: Enabled (auto)
Static Caching: Disabled
Version: 6.2.3 PRO

Installation

Fresh statamic/statamic site via CLI

Additional details

No response