Revert of Potential fix for flaky TSAN

Revert of Potential fix for flaky TSAN (patchset #1 id:1 of https://codereview.chromium.org/2084243003/ )

Reason for revert:
I believe I've fixed SkMatrix44::I() to be thread safe, let's test it by reverting this CL.

Original issue's description:
> Potential fix for flaky TSAN
> 
> TBR=mtklein@google.com
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2084243003
> 
> Committed: https://skia.googlesource.com/skia/+/949999d0bbc247906995358a90c4e436e9152de2

TBR=mtklein@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/+/4d602144a9e7638dee25e91d64bca11d793bb5bf

[msarett, 2016-06-23 19:48:29]

The CQ bit was checked by msarett@google.com

[msarett, 2016-06-23 19:48:29]

Created Revert of Potential fix for flaky TSAN

[commit-bot: I haz the power, 2016-06-23 19:48:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2091573004/1

[commit-bot: I haz the power, 2016-06-23 19:48:46]

Description was changed from

==========
Revert of Potential fix for flaky TSAN (patchset #1 id:1 of
https://codereview.chromium.org/2084243003/ )

Reason for revert:
I believe I've fixed SkMatrix44::I() to be thread safe, let's test it by
reverting this CL.

Original issue's description:
> Potential fix for flaky TSAN
> 
> TBR=mtklein@google.com
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2084243003
> 
> Committed:
https://skia.googlesource.com/skia/+/949999d0bbc247906995358a90c4e436e9152de2

TBR=mtklein@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 Potential fix for flaky TSAN (patchset #1 id:1 of
https://codereview.chromium.org/2084243003/ )

Reason for revert:
I believe I've fixed SkMatrix44::I() to be thread safe, let's test it by
reverting this CL.

Original issue's description:
> Potential fix for flaky TSAN
> 
> TBR=mtklein@google.com
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2084243003
> 
> Committed:
https://skia.googlesource.com/skia/+/949999d0bbc247906995358a90c4e436e9152de2

TBR=mtklein@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/+/4d602144a9e7638dee25e91d64bca11d793bb5bf
==========

[commit-bot: I haz the power, 2016-06-23 19:48:47]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/4d602144a9e7638dee25e91d64bca11d793bb5bf