Revert "run some tests using python3"

This reverts commit 658f361a34e21b92902a6b4c74047363b053cad3.

Reason for revert: crbug.com/1274039 (breaks ASAN bots)

Original change's description:
> run some tests using python3
>
> Bug: 941669
> Change-Id: Ib63daab2a4cb3868cfc37121c3f48ebb2019af39
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3301620
> Auto-Submit: Takuto Ikuta <tikuta@chromium.org>
> Commit-Queue: Nico Weber <thakis@chromium.org>
> Reviewed-by: Nico Weber <thakis@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#945345}

Bug: 941669, 1274039
Change-Id: Ib271b4e80ca4969f871eb1bc341a81449783a014
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3302106
Commit-Queue: Alexander Hendrich <hendrich@chromium.org>
Owners-Override: Alexander Hendrich <hendrich@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#945573}
NOKEYCHECK=True
GitOrigin-RevId: 17304dfd2f915f3f98d7b1d43b230e860f4ffdd9
1 file changed
tree: b341b1dd28fc0dbc6f6233e84dc46bb2bf160c3f
  1. asan/
  2. OWNERS
  3. README