Removed memory leak suppression for crbug.com/381584.

Removed memory leak suppression for crbug.com/381584 as it's not triggered on bots http://chromium-build-logs.appspot.com/suppression_query?suppression_query=bug_381584 since https://codereview.chromium.org/552363002.

BUG=381584
TEST=unit_tests:DeviceOAuth2TokenServiceTest.*
TBR=glider@chromium.org

Committed: https://crrev.com/67b1e125b3779c9584d41ce8522a3433aea799d8
Cr-Commit-Position: refs/heads/master@{#294805}

[ygorshenin1, 2014-09-15 09:17:30]

ygorshenin@chromium.org changed reviewers:
+ earthdok@chromium.org

[ygorshenin1, 2014-09-15 11:02:08]

The CQ bit was checked by ygorshenin@chromium.org

[commit-bot: I haz the power, 2014-09-15 11:02:21]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patchset/563943004/1

[commit-bot: I haz the power, 2014-09-15 12:02:57]

Committed patchset #1 (id:1) as 46e0c61c9ab872da2c646374fc73f70dd3ecbe9f

[commit-bot: I haz the power, 2014-09-15 12:21:54]

Patchset 1 (id:??) landed as
https://crrev.com/67b1e125b3779c9584d41ce8522a3433aea799d8
Cr-Commit-Position: refs/heads/master@{#294805}