Revert "Roll minimum picture version up to 44."

This reverts commit e037d12625b1dbb7952ae8a6553d6830e8b3ebbf.

Reason for revert: Checking to see if this broke the Chrome DEPS roll

Original change's description:
> Roll minimum picture version up to 44.
> 
> This is the version produced by Chrome M54.  M56 is stable now.
> 
> I am most interested in deleting SkBitmapSourceDeserializer,
> because it awkwardly calls from core into effects (SkImageSource).
> 
> Change-Id: I58b8b990017ba43372ab3333a4ef8312e75abc61
> Reviewed-on: https://skia-review.googlesource.com/8286
> Reviewed-by: Mike Reed <reed@google.com>
> Commit-Queue: Mike Klein <mtklein@chromium.org>
> 

TBR=mtklein@chromium.org,reed@google.com,reviews@skia.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Change-Id: I9202591c7945c9421f335e544bf12461e38acdc6
Reviewed-on: https://skia-review.googlesource.com/8305
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
7 files changed