Revert "[graphite] Add Vulkan BackendTexture creation and deletion methods; unit tests"

This reverts commit b54e6505a641e4c602ca189e3a85af800c47cc39.

Reason for revert: Broke a task on QuadP400 gpus

Original change's description:
> [graphite] Add Vulkan BackendTexture creation and deletion methods; unit tests
>
> * Add VulkanAlloc member attribute to BackendTexture such that allocations can be freed when client calls for destruction
>
> Change-Id: I382730cc2b920a741b9dc76b4b8bf5ba355dbeac
> Bug: b/237423350
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/754316
> Reviewed-by: Jim Van Verth <jvanverth@google.com>
> Commit-Queue: Greg Daniel <egdaniel@google.com>
> Auto-Submit: Nicolette Prevost <nicolettep@google.com>
> Reviewed-by: Greg Daniel <egdaniel@google.com>

Bug: b/237423350
Change-Id: Ic794a0da40a14d5c0766e6274b3c67ca7bdc2bb7
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/755238
Auto-Submit: Nicolette Prevost <nicolettep@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
9 files changed