remove i386 from foreign arch on server install?

[Adam Conrad]

On Sat, Feb 15, 2014 at 10:56:36PM -0700, Adam Conrad wrote:
> 
> It actually explicitly does the inverse right now, only twiddles
> foreign arch on install, not upgrade, assuming that you know what
> you're doing if you turn it off.

Well, okay, new installs and upgrades from pre-oneiric.  I guess I
can ditch that part of the code now. :P

... Adam