Corentin Wallez 974802d17c Remove BackendBinding and its implementations.
These were helpers for implementation-based swapchains that are getting
removed.

Bug: dawn:269
Change-Id: I44b0f9a9d221b9370c3eb2625c68e540b6e2ef46
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/126420
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Loko Kung <lokokung@google.com>
Reviewed-by: Austin Eng <enga@chromium.org>
2023-04-05 07:23:09 +00:00
..
2022-05-01 14:40:55 +00:00