Poudriere building far more ports than it should

[Reko Turja]

First of all, big thanks to everyone who tried to help!

> Mostly asking to make sure if this is something to be expected, glitch in 
> some ports or possibly a bug.

I think Poudriere pulls in all the possible dependencies, just in case and
compiles them as well, just in case. Now I've done some installs etc, I'm
just going to blacklist the unnecessary ports which aren't used or linked,
in order to make the Poudriere build process meaner and leaner.

-Reko