Remove techcrunch.com from the list of story to be run in power.top_25

Remove techcrunch.com from the list of story to be run in power.top_25

BUG=498229, 489214
TBR=andresantoso@chromium.org, sullivan@chromium.org
CQ_EXTRA_TRYBOTS=tryserver.chromium.perf:mac_perf_bisect;tryserver.chromium.perf:android_nexus5_perf_bisect

Committed: https://crrev.com/46cf91c0b8bcafa8127563015b1ea6e0768b3072
Cr-Commit-Position: refs/heads/master@{#333725}

[nednguyen, 2015-06-10 03:31:59]

The CQ bit was checked by nednguyen@google.com

[commit-bot: I haz the power, 2015-06-10 03:32:31]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1177623003/1

[commit-bot: I haz the power, 2015-06-10 03:37:04]

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

[commit-bot: I haz the power, 2015-06-10 03:37:05]

Try jobs failed on following builders:
  mac_perf_bisect on tryserver.chromium.perf (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.perf/builders/mac_perf_bisect/...)

[nednguyen, 2015-06-10 03:55:19]

The CQ bit was checked by nednguyen@google.com

[commit-bot: I haz the power, 2015-06-10 03:55:30]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1177623003/1

[nednguyen, 2015-06-10 04:26:33]

The CQ bit was unchecked by nednguyen@google.com

[nednguyen, 2015-06-10 04:27:32]

Patchset #1 (id:1) has been deleted

[nednguyen, 2015-06-10 04:27:53]

The CQ bit was checked by nednguyen@google.com

[commit-bot: I haz the power, 2015-06-10 04:28:02]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1177623003/20001

[commit-bot: I haz the power, 2015-06-10 06:28:33]

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

[commit-bot: I haz the power, 2015-06-10 06:28:34]

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

[nednguyen, 2015-06-10 12:33:43]

The CQ bit was checked by nednguyen@google.com

[commit-bot: I haz the power, 2015-06-10 12:33:52]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1177623003/20001

[commit-bot: I haz the power, 2015-06-10 12:37:09]

Committed patchset #1 (id:20001)

[commit-bot: I haz the power, 2015-06-10 12:37:57]

Patchset 1 (id:??) landed as
https://crrev.com/46cf91c0b8bcafa8127563015b1ea6e0768b3072
Cr-Commit-Position: refs/heads/master@{#333725}