Revert of Switch Skia's libjpeg-turbo to 1.4.2

Revert of Switch Skia's libjpeg-turbo to 1.4.2 (patchset #2 id:160001 of https://codereview.chromium.org/1469553002/ )

Reason for revert:
Breaking jpeg decodes everywhere.  I need to look into this.

Original issue's description:
> Switch Skia's libjpeg-turbo to 1.4.2
> 
> The Android security team wants Android to be on the latest version
> of libjpeg-turbo, so Skia should test on this version as well.
> 
> This shouldn't affect Gold.
> 
> I wouldn't be surprised if this causes a few ASAN/valgrind issues
> that we need to fix.
> 
> BUG=skia:
> 
> Committed: https://skia.googlesource.com/skia/+/8e8eda9d4d2e6e65e3339eaaaf8144a4ef6c721c

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

Committed: https://skia.googlesource.com/skia/+/4b9596109a32ec61ef9ffbbf03684e9f99c3cbf7

[msarett, 2015-11-23 15:25:39]

Created Revert of Switch Skia's libjpeg-turbo to 1.4.2

[commit-bot: I haz the power, 2015-11-23 15:25:43]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1468073002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1468073002/1

[commit-bot: I haz the power, 2015-11-23 15:25:55]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/4b9596109a32ec61ef9ffbbf03684e9f99c3cbf7