Revert "Revert "remove dead code for legacy image encode api""

This reverts commit 1e0779ba1120182c03f5d52a66df043d70efc376.

Reason for revert: Flutter and Fuchsia have both been switched to new API!

Original change's description:
> Revert "remove dead code for legacy image encode api"
> 
> This reverts commit 41ed7f33792c4c32b8444230b8b59cab5e29e45e.
> 
> Reason for revert: Need this in temporarily to navigate Flutter and Fuchsia rolls.
> 
> Original change's description:
> > remove dead code for legacy image encode api
> > 
> > Bug: skia:
> > Change-Id: Ia90d776946281473c56cd93006df1b523475696a
> > Reviewed-on: https://skia-review.googlesource.com/23022
> > Reviewed-by: Leon Scroggins <scroggo@google.com>
> > Commit-Queue: Mike Reed <reed@google.com>
> 
> TBR=scroggo@google.com,reed@google.com
> 
> # Not skipping CQ checks because original CL landed > 1 day ago.
> 
> Bug: skia:
> Change-Id: I078762fc13de0c455dc6f8a5725d9529af03bffc
> Reviewed-on: https://skia-review.googlesource.com/23385
> Reviewed-by: Brian Osman <brianosman@google.com>
> Commit-Queue: Brian Osman <brianosman@google.com>

TBR=scroggo@google.com,brianosman@google.com,reed@google.com

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: skia:
Change-Id: I2b45facf21a97d01a81c7f311252d2f45eb1f61e
Reviewed-on: https://skia-review.googlesource.com/24281
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
3 files changed