Remove SkImage deferred texture image data APIs.

These APIs existed for Chrome. Chrome is no longer using them.

Change-Id: I15a5e2f88c7e8d1356188748fc68d4658f6f1849
Reviewed-on: https://skia-review.googlesource.com/81021
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Cary Clark <caryclark@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
6 files changed