Revert of Introduce SkGammas type to represent ICC gamma curves

Revert of Introduce SkGammas type to represent ICC gamma curves (patchset #7 id:40002 of https://codereview.chromium.org/1928123002/ )

Reason for revert:
Breaks TSAN
https://build.chromium.org/p/client.skia/builders/Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-TSAN/builds/6387/steps/dm/logs/stdio

Original issue's description:
> Introduce SkGammas type to represent ICC gamma curves
> 
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1928123002
> 
> Committed: https://skia.googlesource.com/skia/+/7b2c6dd8c918209cb92e1338905d511c68da3eb2

TBR=scroggo@google.com,reed@google.com,brianosman@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/+/a2ffa98323a17036c6df018127e3723099458a93

[msarett, 2016-04-29 18:12:13]

Created Revert of Introduce SkGammas type to represent ICC gamma curves

[commit-bot: I haz the power, 2016-04-29 18:12:18]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1933863002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1933863002/1

[commit-bot: I haz the power, 2016-04-29 18:12:25]

Description was changed from

==========
Revert of Introduce SkGammas type to represent ICC gamma curves (patchset #7
id:40002 of https://codereview.chromium.org/1928123002/ )

Reason for revert:
Breaks TSAN
https://build.chromium.org/p/client.skia/builders/Test-Ubuntu-GCC-GCE-CPU-AVX...

Original issue's description:
> Introduce SkGammas type to represent ICC gamma curves
> 
> BUG=skia:
> GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...
> 
> Committed:
https://skia.googlesource.com/skia/+/7b2c6dd8c918209cb92e1338905d511c68da3eb2

TBR=scroggo@google.com,reed@google.com,brianosman@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 Introduce SkGammas type to represent ICC gamma curves (patchset #7
id:40002 of https://codereview.chromium.org/1928123002/ )

Reason for revert:
Breaks TSAN
https://build.chromium.org/p/client.skia/builders/Test-Ubuntu-GCC-GCE-CPU-AVX...

Original issue's description:
> Introduce SkGammas type to represent ICC gamma curves
> 
> BUG=skia:
> GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...
> 
> Committed:
https://skia.googlesource.com/skia/+/7b2c6dd8c918209cb92e1338905d511c68da3eb2

TBR=scroggo@google.com,reed@google.com,brianosman@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/+/a2ffa98323a17036c6df018127e3723099458a93
==========

[commit-bot: I haz the power, 2016-04-29 18:12:26]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/a2ffa98323a17036c6df018127e3723099458a93