Revert of Add terrible workaround to fix stencil clear crash on S3.

Revert of Add terrible workaround to fix stencil clear crash on S3. (patchset #1 id:1 of https://codereview.chromium.org/1001693003/)

Reason for revert:
Needs to be reverted in order to cleanly revert
https://codereview.chromium.org/949263002

That one needs to be reverted to fix black boxes with GPU
raster, and GPU bot failures.

BUG=466690
Original issue's description:
> Add terrible workaround to fix stencil clear crash on S3.
> 
> BUG=skia:3525
> 
> Committed: https://skia.googlesource.com/skia/+/084340bb9bbb538baf02a11ac36e29f0d9cdc493

TBR=joshualitt@google.com,bsalomon@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:3525
Committed: https://skia.googlesource.com/skia/+/3700c9a2d3067135229cbd510f604df875e5c268

[ccameron, 2015-03-13 23:03:05]

Created Revert of Add terrible workaround to fix stencil clear crash on S3.

[commit-bot: I haz the power, 2015-03-13 23:03:20]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1005263002/1

[commit-bot: I haz the power, 2015-03-13 23:03:20]

Note for Reviewers:
The CQ is waiting for an approval.
If you believe that the CL is not ready yet, or if you would like to L-G-T-M
with comments then please uncheck the CQ checkbox.

Waiting for LGTM from valid reviewer(s) till 2015-03-14 05:03 UTC

[commit-bot: I haz the power, 2015-03-14 05:03:27]

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

[commit-bot: I haz the power, 2015-03-14 05:03:27]

No LGTM from a valid reviewer yet. Please ask for an LGTM from a
full Skia committer from
https://skia.googlesource.com/skia/+/master/CQ_COMMITTERS

[bsalomon, 2015-03-14 19:02:13]

The CQ bit was checked by bsalomon@google.com

[commit-bot: I haz the power, 2015-03-14 19:02:20]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1005263002/1

[commit-bot: I haz the power, 2015-03-14 19:02:21]

Note for Reviewers:
The CQ is waiting for an approval.
If you believe that the CL is not ready yet, or if you would like to L-G-T-M
with comments then please uncheck the CQ checkbox.

Waiting for LGTM from valid reviewer(s) till 2015-03-15 01:02 UTC

[bsalomon, 2015-03-14 19:05:21]

On 2015/03/14 19:02:21, I haz the power (commit-bot) wrote:
> Note for Reviewers:
> The CQ is waiting for an approval.
> If you believe that the CL is not ready yet, or if you would like to L-G-T-M
> with comments then please uncheck the CQ checkbox.
> 
> Waiting for LGTM from valid reviewer(s) till 2015-03-15 01:02 UTC

lgtm

[commit-bot: I haz the power, 2015-03-14 19:06:58]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/3700c9a2d3067135229cbd510f604df875e5c268