Revert of Support using OpenGL ES context on desktop

Revert of Support using OpenGL ES context on desktop (https://codereview.chromium.org/319043005/)

Reason for revert:
Caused segmentation fault on many builders. Please see reverted CL's msg #21 for details.

Original issue's description:
> Support using OpenGL ES context on desktop
> 
> Support using OpenGL ES context on desktop for unix and Android platforms. This
> is mainly useful in development.
> 
> Add --gpuAPI flag to gm, dm, bench, bench_pictures and render_pictures. The
> possible parameters for the flag are "gl" and "gles".
> 
> Committed: https://skia.googlesource.com/skia/+/74fc727dc88ee24d89f88cb1709f963e9073aeb3

TBR=bsalomon@google.com,kkinnunen@nvidia.com
NOTREECHECKS=true
NOTRY=true

Committed: https://skia.googlesource.com/skia/+/05ead8afe5e4db21f9004334ac339bdad48d5057

[rmistry, 2014-06-23 13:08:30]

Created Revert of Support using OpenGL ES context on desktop

[commit-bot: I haz the power, 2014-06-23 13:09:31]

CQ is trying da patch. Follow status at
 https://skia-tree-status.appspot.com/cq/rmistry@google.com/351583002/1

[commit-bot: I haz the power, 2014-06-23 13:09:32]

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

[commit-bot: I haz the power, 2014-06-23 13:09:33]

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

[rmistry, 2014-06-23 13:12:50]

The CQ bit was checked by rmistry@google.com

[commit-bot: I haz the power, 2014-06-23 13:13:31]

CQ is trying da patch. Follow status at
 https://skia-tree-status.appspot.com/cq/rmistry@google.com/351583002/1

[commit-bot: I haz the power, 2014-06-23 13:14:13]

Change committed as 05ead8afe5e4db21f9004334ac339bdad48d5057