[Chromoting] Remove hangout consent dialog.

[Chromoting] Remove hangout consent dialog.

We're updating our build to ensure that all html files are auto
generated and jscompiled. This html file is being removed now (rather
than updated to be jscompiled) because we intend to remove the
It2MeHelpeeChannel code in the near future.

BUG=

Committed: https://crrev.com/2f51134af40b596569eb0542727db995e6b07369
Cr-Commit-Position: refs/heads/master@{#318992}

[garykac, 2015-03-03 19:56:26]

garykac@chromium.org changed reviewers:
+ kelvinp@chromium.org

[kelvinp, 2015-03-03 21:05:01]

lgtm

[garykac, 2015-03-03 21:48:53]

The CQ bit was checked by garykac@chromium.org

[garykac, 2015-03-03 21:48:53]

The patchset sent to the CQ was uploaded after l-g-t-m from kelvinp@chromium.org
Link to the patchset: https://codereview.chromium.org/979483002/#ps20001 (title:
"Fix unittest")

[commit-bot: I haz the power, 2015-03-03 21:50:47]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/979483002/20001

[commit-bot: I haz the power, 2015-03-04 01:29:35]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-03-04 01:30:23]

Patchset 2 (id:??) landed as
https://crrev.com/2f51134af40b596569eb0542727db995e6b07369
Cr-Commit-Position: refs/heads/master@{#318992}