Fold i386-v4-nat.c into i386-sol2-nat.c

[Pedro Alves]

On 06/08/2018 01:20 PM, Rainer Orth wrote:
> I've been carrying around the following patch for some time.  I noticed
> that both i386-sol2-nat.c and i386-v4-nat.c are Solaris-only now and it
> seems confusing to carry both around.
> 
> So this patch merges i386-v4-nat.c into i386-sol2-nat.c, simplifying it
> in a couple of places, like removing checks for macros that are always
> defined.
> 
> Tested on 64-bit Solaris 11.5/x86 (amd64-pc-solaris2.11) and 32-bit
> Solaris 11.3/x86 (i386-pc-solaris2.11) half a year ago.
> 
> Ok for mainline?

OK.

Thanks,
Pedro Alves