Revert of SkScaledCodec class (patchset #34 id:660001 of https://codereview.chromium.org/1260673002/ )

Reason for revert:
Seg-faulting:
http://build.chromium.org/p/client.skia/builders/Test-Ubuntu-GCC-GCE-CPU-AVX2-x86-Release/builds/1608/steps/dm/logs/stdio

Original issue's description:
> SkScaledCodec class
>
> This class does scaling by using a scanlineDecoder.
> getScanlines and skipScanlines are used for y sampling,
> the swizzler is used for x sampling
>
> this class is currently only working for png and jpeg images
> I will update other Codec types to work soon
>
> For SkJpegCodec to implement width wise swizzling it now
> uses a swizzler. I ran performance tests on this change.
> Here are the performance test results:
> https://docs.google.com/a/google.com/spreadsheets/d/1D7-Q_GXD_dI68LZO005NNvb8Wq2Ee0wEBEPG72671yw/edit?usp=sharing
>
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/0944100ac89f797714eeae0cf2875e2335ff52ee
>
> Committed: https://skia.googlesource.com/skia/+/d518ea7927f9f4e0ed5b4134d1b4f48243855a47

TBR=scroggo@google.com,msarett@google.com,djsollen@google.com,mtklein@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/1294613002
16 files changed