Revert "Add extra check that the namespace sandbox is engaged."
Reason for revert:
See crbug/456993.
This reverts commit 2037cb15035e20d0ff63e2b8ec5cc94379d2063f.
TBR=jln
BUG=456993
Original issue's description:
> Add extra check that the namespace sandbox is engaged.
>
> BUG=312380
> Committed: https://crrev.com/2037cb15035e20d0ff63e2b8ec5cc94379d2063f
> Cr-Commit-Position: refs/heads/master@{#315446}
Review URL: https://codereview.chromium.org/896713004
Cr-Commit-Position: refs/heads/master@{#315534}
1 file changed
