Revert of Restore text alloc optimizations.

Revert of Restore text alloc optimizations. (patchset #6 of https://codereview.chromium.org/466363009/)

Reason for revert:
asserts in debug layout tests:
http://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux%20%28dbg%29/builds/21891/steps/webkit_tests/logs/stdio

Original issue's description:
> Restore text vertex buffer alloc and other optimizations.
> 
> Modifies the fontcache GM to ensure that the font cache is forced to flush.
> 
> Committed: https://skia.googlesource.com/skia/+/9c3d24b9d1ba3d955094ff0cb1ba2d11e1c1adca
> 
> Committed: https://skia.googlesource.com/skia/+/63b9dc82474a4daf195c6157a711be401f7a0ddd

TBR=bsalomon@google.com,robertphillips@google.com,jvanverth@google.com
NOTREECHECKS=true
NOTRY=true

[mtklein, 2014-08-29 13:56:20]

Created Revert of Restore text alloc optimizations.

[commit-bot: I haz the power, 2014-08-29 13:57:21]

CQ is trying da patch. Follow status at
 https://skia-tree-status.appspot.com/cq/mtklein@google.com/518823002/1

[commit-bot: I haz the power, 2014-08-29 13:57:24]

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

[commit-bot: I haz the power, 2014-08-29 13:57:24]

Failed to apply patch for expectations/gm/ignored-tests.txt:
While running git apply --index -p1;
  error: patch failed: expectations/gm/ignored-tests.txt:38
  error: expectations/gm/ignored-tests.txt: patch does not apply

Patch:       expectations/gm/ignored-tests.txt
Index: expectations/gm/ignored-tests.txt
diff --git a/expectations/gm/ignored-tests.txt
b/expectations/gm/ignored-tests.txt
index
89d318a5a7d95ec3e50e3db3a5bb329cf97b898e..443626c9c52d0443c31fce307cad14f12d7c2303
100644
--- a/expectations/gm/ignored-tests.txt
+++ b/expectations/gm/ignored-tests.txt
@@ -38,6 +38,3 @@
 
 # reed
 matrixconvolution
-
-# Added as part of https://codereview.chromium.org/466363009/
-fontcache