This reverts commit 77af4ecd35.
Reason for revert: iOS errors and bad images on Gold
Original change's description:
> Support GL_EXT_draw_buffers
>
> Change-Id: I078aa7c42de4368602b0ef43bd7e18efbfd1e049
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/212182
> Reviewed-by: Robert Phillips <robertphillips@google.com>
> Commit-Queue: Brian Osman <brianosman@google.com>
TBR=bsalomon@google.com,robertphillips@google.com,brianosman@google.com
Change-Id: Ib8759d4a1009f9a8774365a699e211834d634cff
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/212264
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
a9aaef0c99