public void removeAdminAccount(JID jid) {
        if (adminList == null) {
            loadAdminList();
        }
        
        JID bareJID = jid.asBareJID();
        if (!adminList.contains(bareJID)) {
            return;
        }
        // Remove user from admin list cache.
        adminList.remove(bareJID);
        // Store updated list of admins with provider.
        provider.setAdmins(adminList);
    }
Removes an account from the list of Admin accounts, based off JID.

@param jid JID of user to remove from admin list.
xmppserver/src/main/java/org/jivesoftware/openfire/admin/AdminManager.java