[Sync] Remove periodic sync for Chrome for Android, take 2.

[Sync] Remove periodic sync for Chrome for Android, take 2.

updateAccount() is always called on startup with the signed in account,
so the removePeriodicSync() call will be hit even for already signed in
users when the app restarts.

This change was previously submitted as http://crrev.com/1148613002 but
got reverted due to a bad merge caused by http://crrev.com/1138013008.

BUG=480688
Committed: https://crrev.com/d0b9cf4b34450dc615f2f574d0af0c7010f33636
Cr-Commit-Position: refs/heads/master@{#330703}

[maxbogue, 2015-05-20 04:20:20]

maxbogue@chromium.org changed reviewers:
+ nyquist@chromium.org

[maxbogue, 2015-05-20 04:20:21]

Hey Tommy, please take a look at this corrected CL. The only change is the test
now using AndroidSyncSettings.updateAccount() instead of
mAndroid.updateAccount().

[nyquist, 2015-05-20 04:57:40]

lgtm

[maxbogue, 2015-05-20 04:58:35]

The CQ bit was checked by maxbogue@chromium.org

[commit-bot: I haz the power, 2015-05-20 04:58:48]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1144993002/1

[commit-bot: I haz the power, 2015-05-20 05:25:40]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-05-20 05:26:26]

Patchset 1 (id:??) landed as
https://crrev.com/d0b9cf4b34450dc615f2f574d0af0c7010f33636
Cr-Commit-Position: refs/heads/master@{#330703}