Revert of SkScaledCodec class

Revert of SkScaledCodec class (patchset #35 id:680001 of https://codereview.chromium.org/1260673002/ )

Reason for revert:
breaking ubuntu bots

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
> 
> Committed: https://skia.googlesource.com/skia/+/b157917507d4f7d2651f0aeb566d31603cc02240

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

Committed: https://skia.googlesource.com/skia/+/b0a32cc38fcd8f37a23dfa19e928aeca529eaf14

[egdaniel, 2015-08-14 13:37:24]

Created Revert of SkScaledCodec class

[commit-bot: I haz the power, 2015-08-14 13:37:32]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1285173003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1285173003/1

[commit-bot: I haz the power, 2015-08-14 13:37:47]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/b0a32cc38fcd8f37a23dfa19e928aeca529eaf14