Revert of Use SkSwizzler to convert from CMYK (patchset #4 id:60001 of https://codereview.chromium.org/1411083009/ )

Reason for revert:
Breaking ASAN. See http://build.chromium.org/p/client.skia/builders/Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug-ASAN/builds/2879

Original issue's description:
> Use SkSwizzler to convert from CMYK
>
> Move convert_CMYK_to_RGBA into two functions in SkSwizzler: one for 565
> and one for 8888.
>
> For simplicity, when converting to 8888, we no longer convert in place.
>
> BUG=skia:4476
>
> Committed: https://skia.googlesource.com/skia/+/450ee8f26d39f975cf6af37a27de658ae5a9fa10

TBR=msarett@google.com,scroggo@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:4476

Review URL: https://codereview.chromium.org/1411193006
4 files changed