Revert of Clean up two unlaunched SSE 4.1 8888 blits.

Revert of Clean up two unlaunched SSE 4.1 8888 blits. (patchset #1 id:1 of https://codereview.chromium.org/2062853002/ )

Reason for revert:
Breaks a couple Google3 goldens.  I need to rebaseline google3 with -DSK_SUPPORT_LEGACY_X86_BLITS first, then reland this.

Original issue's description:
> Clean up two unlaunched SSE 4.1 8888 blits.
> 
> This code was running on our bots but never in Chrome.
> That's a bad state to be in.
> 
> My plan here use to be to redesign how our 8888 blits worked in SSE 4.1, mainly
> for perfect correctness but also for speed, then to spread what I learned there
> to SSE2, AVX+, and NEON.
> 
> I have since lost interest in changing any aspect of how our legacy 8888 blits
> work.  There's not much point in making them a bit or two more correct when the
> math is fundamentally wrong.
> 
> This will cause many diffs in Gold, none perceptible.
> 
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2062853002
> CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot
> 
> Committed: https://skia.googlesource.com/skia/+/6e472093009bf2fc4a8e53010b51040efcb71213

TBR=reed@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Committed: https://skia.googlesource.com/skia/+/12386d591c46da098c211a74c7cd65e8ac74b6fb

[mtklein_C, 2016-06-13 18:55:49]

The CQ bit was checked by mtklein@chromium.org

[mtklein_C, 2016-06-13 18:55:50]

Created Revert of Clean up two unlaunched SSE 4.1 8888 blits.

[commit-bot: I haz the power, 2016-06-13 18:55:52]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2066453003/1

[commit-bot: I haz the power, 2016-06-13 18:55:59]

Description was changed from

==========
Revert of Clean up two unlaunched SSE 4.1 8888 blits. (patchset #1 id:1 of
https://codereview.chromium.org/2062853002/ )

Reason for revert:
Breaks a couple Google3 goldens.  I need to rebaseline google3 with
-DSK_SUPPORT_LEGACY_X86_BLITS first, then reland this.

Original issue's description:
> Clean up two unlaunched SSE 4.1 8888 blits.
> 
> This code was running on our bots but never in Chrome.
> That's a bad state to be in.
> 
> My plan here use to be to redesign how our 8888 blits worked in SSE 4.1,
mainly
> for perfect correctness but also for speed, then to spread what I learned
there
> to SSE2, AVX+, and NEON.
> 
> I have since lost interest in changing any aspect of how our legacy 8888 blits
> work.  There's not much point in making them a bit or two more correct when
the
> math is fundamentally wrong.
> 
> This will cause many diffs in Gold, none perceptible.
> 
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2062853002
>
CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot
> 
> Committed:
https://skia.googlesource.com/skia/+/6e472093009bf2fc4a8e53010b51040efcb71213

TBR=reed@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:
==========

to

==========
Revert of Clean up two unlaunched SSE 4.1 8888 blits. (patchset #1 id:1 of
https://codereview.chromium.org/2062853002/ )

Reason for revert:
Breaks a couple Google3 goldens.  I need to rebaseline google3 with
-DSK_SUPPORT_LEGACY_X86_BLITS first, then reland this.

Original issue's description:
> Clean up two unlaunched SSE 4.1 8888 blits.
> 
> This code was running on our bots but never in Chrome.
> That's a bad state to be in.
> 
> My plan here use to be to redesign how our 8888 blits worked in SSE 4.1,
mainly
> for perfect correctness but also for speed, then to spread what I learned
there
> to SSE2, AVX+, and NEON.
> 
> I have since lost interest in changing any aspect of how our legacy 8888 blits
> work.  There's not much point in making them a bit or two more correct when
the
> math is fundamentally wrong.
> 
> This will cause many diffs in Gold, none perceptible.
> 
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2062853002
>
CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot
> 
> Committed:
https://skia.googlesource.com/skia/+/6e472093009bf2fc4a8e53010b51040efcb71213

TBR=reed@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Committed:
https://skia.googlesource.com/skia/+/12386d591c46da098c211a74c7cd65e8ac74b6fb
==========

[commit-bot: I haz the power, 2016-06-13 18:56:00]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/12386d591c46da098c211a74c7cd65e8ac74b6fb