Is isSourceFilterSupported still needed on AIX builds?

[Alan Bateman]

On 30/12/2019 15:42, Lindenmaier, Goetz wrote:
> Hi Alan,
>
> in jdk/jdk, this code can be removed.
> We only support AIX 7 ++ with jdk/jdk.
>
Thanks. Can you also check if IPV6_ADD_MEMBERSHIP and 
IPV6_DROP_MEMBERSHIP are defined? These may be candidates to remove from 
Net.c too.

-Alan