Remove obsolete Solaris 9 support

[Uros Bizjak]

On Wed, Apr 16, 2014 at 1:16 PM, Rainer Orth
<ro@cebitec.uni-bielefeld.de> wrote:
> Now that 4.9 has branched, it's time to actually remove the obsolete
> Solaris 9 configuration.  Most of this is just legwork and falls under
> my Solaris maintainership.
>
> A couple of questions, though:
>
> * Uros: I'm removing all sse_os_support() checks from the testsuite.
>   Solaris 9 was the only consumer, so it seems best to do away with it.

This is OK, but please leave sse-os-check.h (and corresponding
sse_os_support calls) in the testsuite. Just remove the Solaris 9
specific code from sse-os-check.h and always return 1, perhaps with
the comment that all currently supported OSes support SSE
instructions.

Uros.