Revert of Upgrade to new Android SDK. (patchset #16 id:300001 of https://codereview.chromium.org/2350013004/ )

Reason for revert:
This may have changed the adb used by adb_logcat_monitor.py  & creates a conflict with the one used by telemetry.

BUG=656224

Original issue's description:
> Upgrade to new Android SDK.
>
> BUG=623989
>
> Committed: https://crrev.com/e3c21739bcc8d5df70d2dd011c3f575570085b6d
> Cr-Commit-Position: refs/heads/master@{#425423}

TBR=jbudorick@chromium.org,xunjieli@chromium.org,agrieve@chromium.org,stip@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=623989

Review-Url: https://codereview.chromium.org/2425563002
Cr-Commit-Position: refs/heads/master@{#425604}
10 files changed