This reverts commit 4004ae0e.

Crash in PointParameterTest.NegativeEnum/ES1_OPENGL.
https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/Mac%20FYI%20GPU%20ASAN%20Release/1178
angle_end2end_tests on Intel GPU on Mac on Mac-10.12.6 
angle_end2end_tests on ATI GPU on Mac Retina on Mac-10.12.6

Original change's description:
> GLES1: Point rasterization (partial implementation)
> 
> - Not included: Smooth points
> 
> - GL_OES_point_sprite
> - Update test expectations. Note: due to different random sampling,
> edge cases were hit in UserClip. Disabling that test for now.
> 
> BUG=angleproject:2306
> 
> Change-Id: If8367bc3321804b3299d3bc381d6a8e236754baa
> Reviewed-on: https://chromium-review.googlesource.com/1101910
> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
> Commit-Queue: Lingfeng Yang <lfy@google.com>

TBR=geofflang@chromium.org,jmadill@chromium.org,cwallez@chromium.org,lfy@google.com

Change-Id: I776ce0506d349382b3af035c962aa2c3f6826b99
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: angleproject:2306
Bug: angleproject:2680
Reviewed-on: https://chromium-review.googlesource.com/1108457Reviewed-by: Frank Henigman <fjhenigman@chromium.org>
Reviewed-by: Lingfeng Yang <lfy@google.com>
Commit-Queue: Frank Henigman <fjhenigman@chromium.org>