Revert of Distance field fixes for Android

Revert of Distance field fixes for Android (https://codereview.chromium.org/205343008/)

Reason for revert:
compile error at line 110 in GrDistanceFieldTextureEffect.cpp

Original issue's description:
> Distance field fixes for Android
> - Expand glyph size by 2 on each side to compensate for bilerp lookup
> - Correct for Adreno tendency to drop entire tile if any pixel has divide-by-0
> - Fix blurriness on Adreno by using uv coords to compute gradient instead
>   of st coords
> - Add faster version for uniform scale
> 
> BUG=skia:2173
> 
> Committed: http://code.google.com/p/skia/source/detail?r=13955

TBR=bsalomon@google.com
NOTREECHECKS=true
NOTRY=true
BUG=skia:2173
Committed: http://code.google.com/p/skia/source/detail?r=13956

[jvanverth1, 2014-03-26 18:20:54]

Created Revert of Distance field fixes for Android

[commit-bot: I haz the power, 2014-03-26 18:21:01]

CQ is trying da patch. Follow status at
https://skia-tree-status.appspot.com/cq/jvanverth@google.com/212953008/1

[commit-bot: I haz the power, 2014-03-26 18:22:12]

Change committed as 13956