Revert of Fix sandbox target in Windows GN build and enable it. (patchset #1 id:1 of https://codereview.chromium.org/
804993003/)
Reason for revert:
breaks compile step on the win8 gn bot: http://build.chromium.org/p/chromium.win/builders/Win8%20GN/builds/2037
Original issue's description:
> Fix sandbox target in Windows GN build and enable it.
>
> Committed: https://crrev.com/
fdb4e8d624f1bfe1af5ccfebfa3faa0072caa71d
> Cr-Commit-Position: refs/heads/master@{#308471}
TBR=cpu@chromium.org,vchigrin@yandex-team.ru
NOTREECHECKS=true
NOTRY=true
Review URL: https://codereview.chromium.org/
810623002
Cr-Commit-Position: refs/heads/master@{#308478}