@Deprecated(since = "5.0.0", forRemoval = true) // Remove in Openfire 5.1 or later.
    @Nonnull
    public static String removeBracketsFromIpv6Address(@Nonnull final String address) {
        return IpUtils.removeBracketsFromIpv6Address(address);
    }
When the provided input is an IPv6 literal that is enclosed in brackets (the [] style as expressed in
https://tools.ietf.org/html/rfc2732 and https://tools.ietf.org/html/rfc6874), this method returns the value
stripped from those brackets (the IPv6 address, instead of the literal). In all other cases, the input value is
returned.

@param address The value from which to strip brackets.
@return the input value, stripped from brackets if applicable.
@deprecated Moved to {@link IpUtils#removeBracketsFromIpv6Address(String)}
xmppserver/src/main/java/org/jivesoftware/admin/AuthCheckFilter.java