Remove obsolete Solaris 9 support

[Ian Lance Taylor]

On Wed, Apr 16, 2014 at 4:16 AM, Rainer Orth
<ro@cebitec.uni-bielefeld.de> wrote:
>
> * Ian: I've removed Solaris 8 and 9 support from libgo.  I'm uncertain
>   if you want this or rather keep that support for the 4.[789] branches?

I want it.  I don't try to maintain exact copies of older GCC
branches.

Your patch appears separable, and I can commit the libgo part.  Let me
know when I should do so.

Ian