Revert of [Telemetry] Introduce shared_user_story_state for real.

Revert of [Telemetry] Introduce shared_user_story_state for real. (patchset #3 id:100001 of https://codereview.chromium.org/733303003/)

Reason for revert:
Speculative revert
BUG=435775
Original issue's description:
> [Telemetry] Introduce shared_user_story_state for real.
>
> Move page.page_runner --> user_story.user_story_runner.
>
> BUG=418278
>
> Committed: https://crrev.com/7f4660dcd4c4476502a61eb7375c4a941d938b9b
> Cr-Commit-Position: refs/heads/master@{#305119}

TBR=chrishenry@google.com,dtu@chromium.org,tonyg@chromium.org
BUG=418278
Committed: https://crrev.com/d22fddcf0ce196758dd659759f14af88d998aa69
Cr-Commit-Position: refs/heads/master@{#305358}

[nednguyen, 2014-11-22 04:21:35]

Created Revert of [Telemetry] Introduce shared_user_story_state for real.

[nednguyen, 2014-11-22 04:30:32]

The CQ bit was checked by nednguyen@google.com

[nednguyen, 2014-11-22 04:30:33]

The CQ bit was unchecked by nednguyen@google.com

[nednguyen, 2014-11-22 05:35:47]

The CQ bit was checked by nednguyen@google.com

[commit-bot: I haz the power, 2014-11-22 05:36:39]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/752883002/1

[commit-bot: I haz the power, 2014-11-22 06:37:07]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-11-22 06:37:51]

Patchset 1 (id:??) landed as
https://crrev.com/d22fddcf0ce196758dd659759f14af88d998aa69
Cr-Commit-Position: refs/heads/master@{#305358}