This reverts commit 7ac9b5fdb6.
Reason for revert: abandon context bots breaking
Original change's description:
> Add async rescale and read APIs to SkImage.
>
> These function the same as the already existing
> SkSurface APIs.
>
> Bug: skia:10431
>
> Change-Id: I4f1e842d8d4b72ee27bae5f8a85e499e130d420c
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/299281
> Reviewed-by: Brian Osman <brianosman@google.com>
> Reviewed-by: Greg Daniel <egdaniel@google.com>
> Commit-Queue: Brian Salomon <bsalomon@google.com>
TBR=egdaniel@google.com,bsalomon@google.com,brianosman@google.com
Change-Id: I351795274245fc9f553cd210d82178f497f22660
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:10431
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/299376
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
1caf3789f8