Revert of Clean up SSSE3 and SSE4 stubs.

Revert of Clean up SSSE3 and SSE4 stubs. (patchset #1 id:1 of https://codereview.chromium.org/1810183003/ )

Reason for revert:
I've just had a better idea about how to fix this.  Let's revert while I work on it.

Original issue's description:
> Clean up SSSE3 and SSE4 stubs.
> 
> We added these stubs to work around OpenBSD's old compiler, which had
> support for SSE2 but not SSSE3 or SSE4.
> 
> We now already have other unstubbed files that require SSSE3 and SSE4 compiler
> support.  All the compilers we support have SSSE3 and SSE4 support, and all the
> way up to at least AVX2.
> 
> (Requiring C++11 has had some nice ripple effects...)
> 
> 
> And, <immintrin.h> is already auto-included for these files, so no need for smmintrin or tmmintrin.
> 
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1810183003
> CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot
> 
> Committed: https://skia.googlesource.com/skia/+/2b1b40e11afc41452b4d2f74cdebb1b6e6f7cc96

TBR=djsollen@google.com,mtklein@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=skia:

Committed: https://skia.googlesource.com/skia/+/ee451cf09de31267c93b64e1fdac7c823cee7e85

[mtklein, 2016-03-22 14:17:30]

Created Revert of Clean up SSSE3 and SSE4 stubs.

[commit-bot: I haz the power, 2016-03-22 14:17:35]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1819223003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1819223003/1

[commit-bot: I haz the power, 2016-03-22 14:28:14]

Description was changed from

==========
Revert of Clean up SSSE3 and SSE4 stubs. (patchset #1 id:1 of
https://codereview.chromium.org/1810183003/ )

Reason for revert:
I've just had a better idea about how to fix this.  Let's revert while I work on
it.

Original issue's description:
> Clean up SSSE3 and SSE4 stubs.
> 
> We added these stubs to work around OpenBSD's old compiler, which had
> support for SSE2 but not SSSE3 or SSE4.
> 
> We now already have other unstubbed files that require SSSE3 and SSE4 compiler
> support.  All the compilers we support have SSSE3 and SSE4 support, and all
the
> way up to at least AVX2.
> 
> (Requiring C++11 has had some nice ripple effects...)
> 
> 
> And, <immintrin.h> is already auto-included for these files, so no need for
smmintrin or tmmintrin.
> 
> BUG=skia:
> GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...
>
CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot
> 
> Committed:
https://skia.googlesource.com/skia/+/2b1b40e11afc41452b4d2f74cdebb1b6e6f7cc96

TBR=djsollen@google.com,mtklein@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=skia:
==========

to

==========
Revert of Clean up SSSE3 and SSE4 stubs. (patchset #1 id:1 of
https://codereview.chromium.org/1810183003/ )

Reason for revert:
I've just had a better idea about how to fix this.  Let's revert while I work on
it.

Original issue's description:
> Clean up SSSE3 and SSE4 stubs.
> 
> We added these stubs to work around OpenBSD's old compiler, which had
> support for SSE2 but not SSSE3 or SSE4.
> 
> We now already have other unstubbed files that require SSSE3 and SSE4 compiler
> support.  All the compilers we support have SSSE3 and SSE4 support, and all
the
> way up to at least AVX2.
> 
> (Requiring C++11 has had some nice ripple effects...)
> 
> 
> And, <immintrin.h> is already auto-included for these files, so no need for
smmintrin or tmmintrin.
> 
> BUG=skia:
> GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...
>
CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot
> 
> Committed:
https://skia.googlesource.com/skia/+/2b1b40e11afc41452b4d2f74cdebb1b6e6f7cc96

TBR=djsollen@google.com,mtklein@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=skia:

Committed:
https://skia.googlesource.com/skia/+/ee451cf09de31267c93b64e1fdac7c823cee7e85
==========

[commit-bot: I haz the power, 2016-03-22 14:28:15]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/ee451cf09de31267c93b64e1fdac7c823cee7e85