Undoing REPLACE_BASE for a BIND port

[Warren Block]

On Thu, 23 Jan 2014, Paul Hoffman wrote:

> Greetings again. Earlier, I built bind98 from /usr/ports/dns/bind98, 
> and selected REPLACE_BASE. Now I want to use the base BIND. When I 
> uninstall bind98, it seems that there is no /usr/src/named any more. 
> What is the best way to revert from using REPLACE_BASE?

In what version of FreeBSD?  FreeBSD 10 does not have bind in base any 
more.