Docs: Remove Send Feedback button

Docs: Remove Send Feedback button
"Report a bug" -> "Report a content bug"
Cleanup of old CSS

BUG=

Committed: https://crrev.com/79582464b500f76ee3a11b364160531442b90576
Cr-Commit-Position: refs/heads/master@{#310195}

[paulirish, 2015-01-05 23:26:24]

paulirish@chromium.org changed reviewers:
+ mkearney@chromium.org

[paulirish, 2015-01-06 00:13:53]

staged: https://chrome-apps-doc.appspot.com/_patch/836833002/devtools/index

[mkearney1, 2015-01-06 00:15:05]

https://codereview.chromium.org/836833002/diff/1/chrome/common/extensions/doc...
File chrome/common/extensions/docs/templates/private/site.html (right):

https://codereview.chromium.org/836833002/diff/1/chrome/common/extensions/doc...
chrome/common/extensions/docs/templates/private/site.html:63: <a
href="https://www.google.com/">Google</a><a
href="https://developers.google.com/site-terms">Terms of Service</a><a
href="http://www.google.com/intl/en/privacy/">Privacy Policy</a><a href=""
data-feedback>Report a content bug</a>
Notice there's no link here! There never was, but we need to add one, especially
with the send feedback button going away. We could start with
https://code.google.com/p/chromium/issues/entry, but really, we should get a
pre-populated entry set up for this, so at least the bugs come my way.

[paulirish, 2015-01-06 19:52:11]

> Notice there's no link here! There never was, but we need to add one,
especially with the send feedback button going away. We could start with
https://code.google.com/p/chromium/issues/entry, but really, we should get a
pre-populated entry set up for this, so at least the bugs come my way.

used href="http://crbug.com/new" which is closest to canonical we got.

[mkearney1, 2015-01-06 20:10:47]

The CQ bit was checked by mkearney@chromium.org

[mkearney1, 2015-01-06 20:10:47]

lgtm

[commit-bot: I haz the power, 2015-01-06 20:12:11]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/836833002/20001

[commit-bot: I haz the power, 2015-01-06 20:48:35]

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

[commit-bot: I haz the power, 2015-01-06 20:48:36]

Try jobs failed on following builders:
  chromium_presubmit on tryserver.chromium.linux
(http://build.chromium.org/p/tryserver.chromium.linux/builders/chromium_presub...)

[paulirish1, 2015-01-07 00:36:46]

The CQ bit was checked by paulirish@google.com

[commit-bot: I haz the power, 2015-01-07 00:37:24]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/836833002/20001

[commit-bot: I haz the power, 2015-01-07 00:58:14]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-01-07 00:59:22]

Patchset 2 (id:??) landed as
https://crrev.com/79582464b500f76ee3a11b364160531442b90576
Cr-Commit-Position: refs/heads/master@{#310195}