[AFDO] Rollback an auto-roll: Android:Official

Rolls back a recent auto-roll of AFDO because we suspect that
it could be causing problems with the recent Android Official build.

TBR=gbiv
BUG=871173

Change-Id: Icec331079f2b1be1d0b6a5e61d3ca096b46c3f91
Reviewed-on: https://chromium-review.googlesource.com/1166157Reviewed-by: Donn Denman <donnd@chromium.org>
Reviewed-by: George Burgess <gbiv@chromium.org>
Commit-Queue: Donn Denman <donnd@chromium.org>
Cr-Commit-Position: refs/heads/master@{#581372}

chrome/android/profiles/newest.txt

-chromeos-chrome-amd64-70.0.3515.0_rc-r1.afdo.bz2
\ No newline at end of file
+chromeos-chrome-amd64-70.0.3510.3_rc-r1.afdo.bz2