Revert of Migrate device_utils.RestartServer to adb_wrapper

Revert of Migrate device_utils.RestartServer to adb_wrapper (patchset #2 id:20001 of https://codereview.chromium.org/724413003/)

Reason for revert:
Broke (even more!) the android perf bots. Reverting while investigating.

Original issue's description:
> Migrate device_utils.RestartServer to adb_wrapper
>
> The implementation is based on the new AdbWrapper class methods:
> KillServer and StartServer.
>
> BUG=267773
>
> Committed: https://crrev.com/872e2f0d24529365451323c77fe52a56687b32bf
> Cr-Commit-Position: refs/heads/master@{#308336}

TBR=jbudorick@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=267773
Committed: https://crrev.com/72e9ec8981e90a0d75ece2b861520cfbdbbdff7f
Cr-Commit-Position: refs/heads/master@{#308355}

[perezju, 2014-12-15 15:38:30]

Created Revert of Migrate device_utils.RestartServer to adb_wrapper

[jbudorick, 2014-12-15 15:43:17]

lgtm

[perezju, 2014-12-15 15:43:31]

The CQ bit was checked by perezju@chromium.org

[commit-bot: I haz the power, 2014-12-15 15:43:50]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/804033002/1

[commit-bot: I haz the power, 2014-12-15 15:44:15]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-12-15 15:45:10]

Patchset 1 (id:??) landed as
https://crrev.com/72e9ec8981e90a0d75ece2b861520cfbdbbdff7f
Cr-Commit-Position: refs/heads/master@{#308355}