do not disable mailbox in sanity_check

cron.py

@@ -285,32 +285,6 @@ def sanity_check():
 
             LOG.d("Disable mailbox and all its aliases")
 
-            mailbox.verified = False
-            for alias in mailbox.aliases:
-                alias.enabled = False
-
-            db.session.commit()
-
-            email_msg = f"""Hi,
-
-Your mailbox {mailbox.email} cannot receive emails. 
-To avoid forwarding emails to an invalid mailbox, we have disabled this mailbox along with all of its aliases.
-
-If this is a mistake, please reply to this email.
-
-Thanks,
-SimpleLogin team.
-            """
-
-            try:
-                send_email(
-                    mailbox.user.email,
-                    f"{mailbox.email} is disabled",
-                    email_msg,
-                    email_msg.replace("\n", "<br>"),
-                )
-            except Exception:
-                LOG.error("Cannot send disable mailbox email to %s", mailbox.user)
 
     LOG.d("Finish sanity check")