Remove assembler -mtune=i686 configure test

[H.J. Lu]

On Thu, Oct 15, 2015 at 1:13 PM, Joseph Myers <joseph@codesourcery.com> wrote:
> There is a configure test for assembler support for -mtune=i686.  This
> option was added in binutils 2.18 so the test is obsolete; this patch
> removes it.
>
> Tested for x86 (testsuite, and that installed shared libraries are
> unchanged by the patch).
>
> 2015-10-15  Joseph Myers  <joseph@codesourcery.com>
>
>         * sysdeps/i386/configure.ac (libc_cv_as_i686): Remove configure
>         test.
>         * sysdeps/i386/configure: Regenerated.
>         * sysdeps/i386/i686/Makefile [$(config-asflags-i686) = yes]: Make
>         code unconditional.
>

Looks good to me.

Thanks.

-- 
H.J.