DevTools: CSS cleanup.

DevTools: CSS cleanup.

Source/devtools/front_end/inspectorStyle.css:1891 hide-disclosure-buttons
Never used.

Source/devtools/front_end/timelinePanel.css:358 timeline-loading
There is no aggregates stats in popover anymore.

Source/devtools/front_end/elementsPanel.css:648 css-font-value
https://codereview.chromium.org/59993003

Source/devtools/front_end/inspectorStyle.css:1821 console-filter-top
https://bugs.webkit.org/show_bug.cgi?id=68155

BUG=

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=180268

[vsevik, 2014-08-14 08:22:03]

The CQ bit was checked by vsevik@chromium.org

[vsevik, 2014-08-14 08:22:03]

lgtm

[commit-bot: I haz the power, 2014-08-14 08:23:06]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/eustas@chromium.org/471873002/1

[commit-bot: I haz the power, 2014-08-14 13:30:34]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  linux_blink_dbg on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/linux_blink_dbg/builds/2...)
  linux_blink_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/linux_blink_rel/builds/2...)

[commit-bot: I haz the power, 2014-08-14 15:22:35]

Committed patchset #1 (1) as 180268