pkp/pkp-lib#9895 removed older cookie setting reference from config file

config.TEMPLATE.inc.php

@@ -54,11 +54,6 @@
 ; To set the "Secure" attribute for the cookie see the setting force_ssl at the [security] group
 session_samesite = Lax
 
-; Enable this if want to enable cookie encryption
-; The length of the cookie encryption key must be 16 characters
-; Note that updating or removing cookie encryption key will result in logout from all devices
-; session_cookie_encryption_key = ''
-
 ; Enable support for running scheduled tasks
 ; Set this to On if you have set up the scheduled tasks script to
 ; execute periodically