Revert "Reland "Roll buildtools and enable in-tree libc++ on Android""

This reverts commit 10e1da1f3a8a3a03f3ff9c2a8939a497aae1af89.

Reason for revert: https://crbug.com/916973

Original change's description:
> Reland "Roll buildtools and enable in-tree libc++ on Android"
> 
> This is a reland of 1a874fe60ccb87401867a7334b8eb11e5e4b1552
> Android sanitizer bots should be green after:
> https://chromium-review.googlesource.com/c/chromium/src/+/1387399
> 
> Original change's description:
> > Roll buildtools and enable in-tree libc++ on Android
> >
> > Buildtools changelog:
> > https://chromium.googlesource.com/chromium/buildtools/+log/7d88270de197ebe8b439ab5eb57a4a2a0bb810e0..0e1cbc4eab6861b0c84bf2ed9a3c4b7aa2063819
> >
> > BUG=767901
> > R=thakis
> >
> > Change-Id: I96fdafca5e228cbfe7a0909170c0235e7845bbde
> > Reviewed-on: https://chromium-review.googlesource.com/c/1385021
> > Commit-Queue: Thomas Anderson <thomasanderson@chromium.org>
> > Commit-Queue: Nico Weber <thakis@chromium.org>
> > Reviewed-by: Nico Weber <thakis@chromium.org>
> > Reviewed-by: Dirk Pranke <dpranke@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#618035}
> 
> Bug: 767901
> Change-Id: Ibcf1ee670f2696aeadb1a221022d21ddc4ca6753
> Reviewed-on: https://chromium-review.googlesource.com/c/1387745
> Reviewed-by: Nico Weber <thakis@chromium.org>
> Commit-Queue: Thomas Anderson <thomasanderson@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#618427}

TBR=thakis@chromium.org,dpranke@chromium.org,thomasanderson@chromium.org

Change-Id: Ibe9317d04e44f65d67e5876e3bbae83b57b1a026
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 767901
Reviewed-on: https://chromium-review.googlesource.com/c/1388717
Reviewed-by: Thomas Anderson <thomasanderson@chromium.org>
Commit-Queue: Thomas Anderson <thomasanderson@chromium.org>
Cr-Commit-Position: refs/heads/master@{#618577}
2 files changed