It appears it is being used by Rendezvous, and if that protocol is not
being used there is no need to set `AdvertiseAddr` either.
I also adjusted all the `Makefile`s to not depend on `PUBLIC_IP` variable.
Signed-off-by: Jakub Sokołowski <jakub@status.im>
Using `latest` tag is dangerous for non-technical users.
And updating `latest` tag willy-nilly is also bad.
Signed-off-by: Jakub Sokołowski <jakub@status.im>