Revert "add tilers against 1"

Revert "add tilers against 1"

This reverts commit 8110b849d60455d6fb594f26919f0f38c3ec9925.

Reason for revert: Valgrind requires reverting ancestor commit.

Original change's description:
> add tilers against 1
>
> Change-Id: I2482972a43cb89a93cbfb9e708614e0334002e53
> Reviewed-on: https://skia-review.googlesource.com/17483
> Reviewed-by: Herb Derby <herb@google.com>
> Commit-Queue: Mike Klein <mtklein@chromium.org>
>

TBR=mtklein@chromium.org,herb@google.com,reed@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Change-Id: Icbc3a2212f800854ef7b2b17aa99fedad182d53e
Reviewed-on: https://skia-review.googlesource.com/17523
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>