Revert "fixup! HACK: mesa: Disable support for GLES >=3.1"

This reverts commit f2b36fbd0fdf7cb70a07cdc395c5e77e4e2254f0.

Reason for revert: merged with CL:748902

Original change's description:
> fixup! HACK: mesa: Disable support for GLES >=3.1
>
> Disable support only for GLES >=3.2
>
> BUG=b:67374762
> TEST=CtsDeqpTestCases on Cyan and Eve
> CQ-DEPEND=CL:708157
>
> Change-Id: I29d8cea085b0f5d5f816e95959214ea75b3d7883
> Signed-off-by: Tomasz Figa <tfiga@chromium.org>
> Reviewed-on: https://chromium-review.googlesource.com/708156
> Commit-Ready: Ilja H. Friedel <ihf@chromium.org>
> Tested-by: Ilja H. Friedel <ihf@chromium.org>
> Reviewed-by: Ilja H. Friedel <ihf@chromium.org>

BUG=b:67374762, b:68023297
TEST=`USE="-android_gles31 android_gles30" emerge-cave arc-mesa`
      and check corresponding file.
CQ-DEPEND=CL:749002, CL:748902
Change-Id: If638c379e4e72329aac6e635ea87354e521241de
Reviewed-on: https://chromium-review.googlesource.com/749001
Commit-Ready: Po-Hsien Wang <pwang@chromium.org>
Tested-by: Po-Hsien Wang <pwang@chromium.org>
Reviewed-by: Ilja H. Friedel <ihf@chromium.org>
2 files changed