[Telemetry] Remove page_test.DidRunActions hook.

[Telemetry] Remove page_test.DidRunActions hook.

Merge this with DidNavigateToPage since they are called and essentially called
in the same time (after page.Navigate & before page.RunPageInteractions)

BUG=455391, 470147
Committed: https://crrev.com/aff97668c8925e0fea5c567e2361f3c8c4f7c12e
Cr-Commit-Position: refs/heads/master@{#329292}

[nednguyen, 2015-05-11 20:43:52]

nednguyen@google.com changed reviewers:
+ dtu@chromium.org, sullivan@chromium.org

[sullivan, 2015-05-11 20:46:06]

lgtm

[nednguyen, 2015-05-11 20:51:59]

The CQ bit was checked by nednguyen@google.com

[commit-bot: I haz the power, 2015-05-11 20:54:13]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1139823002/1

[nednguyen, 2015-05-11 21:11:41]

The CQ bit was checked by nednguyen@google.com

[nednguyen, 2015-05-11 21:11:42]

The patchset sent to the CQ was uploaded after l-g-t-m from
sullivan@chromium.org
Link to the patchset: https://codereview.chromium.org/1139823002/#ps20001
(title: "Remove WillRunTests in telemetry/")

[commit-bot: I haz the power, 2015-05-11 21:13:37]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1139823002/20001

[commit-bot: I haz the power, 2015-05-11 23:16:50]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-05-11 23:16:52]

Try jobs failed on following builders:
  linux_perf_bisect on tryserver.chromium.perf (JOB_TIMED_OUT, no build URL)
  win_perf_bisect on tryserver.chromium.perf (JOB_TIMED_OUT, no build URL)

[nednguyen, 2015-05-12 00:06:00]

The CQ bit was checked by nednguyen@google.com

[commit-bot: I haz the power, 2015-05-12 00:09:13]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1139823002/20001

[commit-bot: I haz the power, 2015-05-12 00:24:25]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-05-12 00:25:48]

Patchset 2 (id:??) landed as
https://crrev.com/aff97668c8925e0fea5c567e2361f3c8c4f7c12e
Cr-Commit-Position: refs/heads/master@{#329292}