Revert of Merge HarfBuzz kerning support from Blink

Revert of Merge HarfBuzz kerning support from Blink (https://codereview.chromium.org/290993011/)

Reason for revert:
It broke this build:
http://build.chromium.org/p/chromium.chromiumos/builders/ChromiumOS%20%28amd64%29/builds/16352/steps/cbuildbot/logs/stdio

Sorry for the trouble.

Original issue's description:
> Merge HarfBuzz kerning support from Blink
> 
> Original CL: https://codereview.chromium.org/69513002
> 
> BUG=321868
> R=msw@chromium.org
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=273181

TBR=msw@chromium.org,ckocagil@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=321868
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=273189

[Michael van Ouwerkerk, 2014-05-28 10:56:25]

Created Revert of Merge HarfBuzz kerning support from Blink

[commit-bot: I haz the power, 2014-05-28 10:56:55]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/mvanouwerkerk@chromium.org/299313009/1

[commit-bot: I haz the power, 2014-05-28 10:58:20]

Change committed as 273189

[msw, 2014-05-28 16:51:34]

bummer, lgtm