Remove unused file SkOrderedReadBuffer.h

No longer used anywhere.

No-Try: true
Change-Id: I85222909c1150eca7e70f453ec9bc44909495f16
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/753057
Auto-Submit: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
2 files changed