Revert "Shard net_unittests 4x on win/asan bots after libc++ switch."

This reverts commit 4f901e61b7166f04dcdbbadd9715862ace5680d4.

Reason for revert: Should be fixed after r642642.

Timings for net_unittests on latest run of win-asan [1]:
Shard #0 463.9s
Shard #1 469.5s
Shard #2 450.2s
Shard #3 461.6s

Timings before r642642 [2]:
Shard #0 1245.8s
Shard #1 1259.0s
Shard #2 1241.5s
Shard #3 1247.5s

Timings before enabling libc++ [3]:
Shard #0 2053.8s

Overall, with libc++, it now takes 1845.2s, which is even better than the 2053.8s before.

[1] https://ci.chromium.org/p/chromium/builders/ci/win-asan/4053
[2] https://ci.chromium.org/p/chromium/builders/ci/win-asan/4046
[3] https://ci.chromium.org/p/chromium/builders/ci/win-asan/3969

Original change's description:
> Shard net_unittests 4x on win/asan bots after libc++ switch.
>
> TBR=thomasanderson@chromium.org
>
> Bug: 942881
> Change-Id: I9e78c87c68c51bba613ff1b08bbdb750c5000810
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1526617
> Reviewed-by: Nico Weber <thakis@chromium.org>
> Commit-Queue: Nico Weber <thakis@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#641465}

TBR=thakis@chromium.org,thomasanderson@chromium.org
NOTRY=true

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: 942881
Change-Id: I9c4ae74b8ad81489e623007127907e9f5d7a4359
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1533168
Reviewed-by: Nico Weber <thakis@chromium.org>
Commit-Queue: Thomas Anderson <thomasanderson@chromium.org>
Auto-Submit: Thomas Anderson <thomasanderson@chromium.org>
Cr-Commit-Position: refs/heads/master@{#643014}
3 files changed