Revert "Add compressed data support for SkImage."

This reverts commit 57263c2e0ccddf4dd62814c427a39d9d615acbe5.

Reason for revert: assert failures in test bots.

Original change's description:
> Add compressed data support for SkImage.
> 
> Adds a new SkImage::MakeFromCompressed method which takes raw data,
> a size, and a compression method, and returns a GPU-backed
> image.
> 
> Bug: skia:8684
> Change-Id: I570c9dafce283bcd64dfbef4fbe1c4bfeac6ce2a
> Reviewed-on: https://skia-review.googlesource.com/c/184484
> Commit-Queue: Jim Van Verth <jvanverth@google.com>
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Reviewed-by: Robert Phillips <robertphillips@google.com>

TBR=jvanverth@google.com,bsalomon@google.com,robertphillips@google.com,ericrk@google.com

Change-Id: If5705507f4aa34c6495fa72ff1a927cb18eca6ba
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:8684
Reviewed-on: https://skia-review.googlesource.com/c/185002
Reviewed-by: Hal Canary <halcanary@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
5 files changed