Clean up some unused atomic routines.

Clean up some unused atomic routines.

AtomicTest was the only use of sk_atomic_add().
AtomicInc64 bench was the only use of sk_atomic_inc(int64_t*).

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2183473005
CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-TSAN-Trybot,Test-Ubuntu-GCC-Golo-GPU-GT610-x86_64-Release-TSAN-Trybot

Committed: https://skia.googlesource.com/skia/+/570c868b38c7bd56bb1bc3b73d94cdd7069a04bd

[mtklein_C, 2016-07-27 11:01:47]

Description was changed from

==========
Clean up some unused atomic routines.

AtomicTest was the only use of sk_atomic_add().
AtomicInc64 bench was the only use of sk_atomic_inc(int64_t*).

BUG=skia:
==========

to

==========
Clean up some unused atomic routines.

AtomicTest was the only use of sk_atomic_add().
AtomicInc64 bench was the only use of sk_atomic_inc(int64_t*).

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2183473005
CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-TSAN-Trybot,Test-Ubuntu-GCC-Golo-GPU-GT610-x86_64-Release-TSAN-Trybot
==========

[mtklein_C, 2016-07-27 11:02:41]

The CQ bit was checked by mtklein@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-07-27 11:02:44]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[mtklein_C, 2016-07-27 11:38:26]

mtklein@chromium.org changed reviewers:
+ bungeman@google.com

[bungeman-skia, 2016-07-27 14:41:28]

lgtm

[commit-bot: I haz the power, 2016-07-27 14:51:45]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-07-27 14:51:46]

Dry run: This issue passed the CQ dry run.

[mtklein, 2016-07-27 15:39:40]

The CQ bit was checked by mtklein@google.com

[commit-bot: I haz the power, 2016-07-27 15:39:46]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-07-27 15:40:47]

Description was changed from

==========
Clean up some unused atomic routines.

AtomicTest was the only use of sk_atomic_add().
AtomicInc64 bench was the only use of sk_atomic_inc(int64_t*).

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2183473005
CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-TSAN-Trybot,Test-Ubuntu-GCC-Golo-GPU-GT610-x86_64-Release-TSAN-Trybot
==========

to

==========
Clean up some unused atomic routines.

AtomicTest was the only use of sk_atomic_add().
AtomicInc64 bench was the only use of sk_atomic_inc(int64_t*).

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2183473005
CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-TSAN-Trybot,Test-Ubuntu-GCC-Golo-GPU-GT610-x86_64-Release-TSAN-Trybot

Committed:
https://skia.googlesource.com/skia/+/570c868b38c7bd56bb1bc3b73d94cdd7069a04bd
==========

[commit-bot: I haz the power, 2016-07-27 15:40:48]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/570c868b38c7bd56bb1bc3b73d94cdd7069a04bd