Revert "Fix SkLocalMatrixShader::isAImage() to respect local matrix and image local matrix"

This reverts commit 6b4c94b8e996f6cc1f4fa61e9182dc6796c6d533.

Reason for revert: MSAN

Original change's description:
> Fix SkLocalMatrixShader::isAImage() to respect local matrix and image local matrix
> 
> Fixes cts tests.
> 
> b/37161109
> b/37237678
> 
> Bug: skia:
> Change-Id: Ida9ac5e4261e8a6b22e8cdc0e585e0e7929dbbfd
> Reviewed-on: https://skia-review.googlesource.com/13249
> Commit-Queue: Mike Klein <mtklein@chromium.org>
> Reviewed-by: Mike Klein <mtklein@chromium.org>
> (cherry picked from commit e5efa51b2acc86d1993132348d5b465855a653cc)
> Reviewed-on: https://skia-review.googlesource.com/13257
> Reviewed-by: Matt Sarett <msarett@google.com>
> 

TBR=msarett@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Change-Id: I35dabe5292fc2c6b96f01fa8f874452a52e4a10e
Reviewed-on: https://skia-review.googlesource.com/13263
Reviewed-by: Matt Sarett <msarett@google.com>
Commit-Queue: Matt Sarett <msarett@google.com>
4 files changed