Revert "Roll SwiftShader 88482c3..700a1a6"

This reverts commit 083b6f261561e534a5f68c6477cef6c0b64ea710.

Reason for revert: I think this is causing crashes on Mac 10.13 (dbg). See https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/Mac10.13%20Tests%20%28dbg%29/3362.

Original change's description:
> Roll SwiftShader 88482c3..700a1a6
> 
> https://swiftshader.googlesource.com/SwiftShader.git/+log/88482c3..700a1a6
> 
> BUG=chromium:845700, chromium:852641, chromium:851707
> 
> TBR=kbr@chromium.org
> 
> TEST=bots
> 
> CQ_INCLUDE_TRYBOTS=luci.chromium.try:win_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_chromium_cfi_rel_ng;luci.chromium.try:android_optional_gpu_tests_rel
> 
> Change-Id: Ic36ddc1988cd83970a4a53b52a1ce1b229d17137
> Reviewed-on: https://chromium-review.googlesource.com/1102886
> Commit-Queue: Nicolas Capens <capn@chromium.org>
> Reviewed-by: Alexis Hétu <sugoi@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#567894}

TBR=sugoi@chromium.org,capn@chromium.org

Change-Id: I96e96329f4de1581ca11fca443fa943e58ce8f4c
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:845700, chromium:852641, chromium:851707
Cq-Include-Trybots: luci.chromium.try:win_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_chromium_cfi_rel_ng;luci.chromium.try:android_optional_gpu_tests_rel
Reviewed-on: https://chromium-review.googlesource.com/1103398
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Commit-Queue: Dirk Pranke <dpranke@chromium.org>
Cr-Commit-Position: refs/heads/master@{#567898}
1 file changed