Remove another set of AttachCache

Compared against images using config gldft.
Everything the same.

Change-Id: I9c9209dfcae4f4d79cbdb8c2acac3b623c87300f
Reviewed-on: https://skia-review.googlesource.com/113401
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Herb Derby <herb@google.com>
3 files changed