Revert "Report data usage UMA for Chrome services"

Revert "Report data usage UMA for Chrome services"

This reverts commit aa789c8328a65922859dfd8ca2d9b18212dc3c94.

Broken compile:
../../sync/tools/sync_client.cc:408:32: error: too few arguments to
function call, expected 2, have 1
  post_factory->Init(kUserAgent);
    ~~~~~~~~~~~~~~~~~~           ^

BUG=527304
Committed: https://crrev.com/294165fa24917221f3738f5ef5707f3bf4b25678
Cr-Commit-Position: refs/heads/master@{#348564}

[commit-bot: I haz the power, 2015-09-14 05:38:00]

Patchset 1 (id:??) landed as
https://crrev.com/294165fa24917221f3738f5ef5707f3bf4b25678
Cr-Commit-Position: refs/heads/master@{#348564}

[dcheng, 2015-09-14 05:38:23]

Committed patchset #1 (id:1) manually as
294165fa24917221f3738f5ef5707f3bf4b25678 (tree was closed).

[commit-bot: I haz the power, 2015-09-23 12:29:41]

Patchset 1 (id:??) landed as
https://crrev.com/294165fa24917221f3738f5ef5707f3bf4b25678
Cr-Commit-Position: refs/heads/master@{#348564}