Deployed long overdue updates 9.5 - 13.1 . Now I can't change custom help messages on login

Apparently this is now a paid feature. All I want is to remove the messages since they are now stagnant. I see the entries in the database but I am loathe to change them without understanding the implications.

Anyone else run in to this?

Since no one had an opinion, I went ahead and nulled the sign_in_text field in the appropriate table. No evidence of harm.