Revert "Fix crash on windows viewer when starting in vulkan."

This reverts commit fcd68167a2612206c059dd2130ffadd0e4db517e.

Reason for revert: going to do this a different way

Original change's description:
> Fix crash on windows viewer when starting in vulkan.
>
> setRequestedDisplayParams is called when setting up viewer before we've
> inited the Window. On windows this tries to attach the Window for a given
> backend. However, we haven't set fBackend yet. Later on we will directly
> call attach.
>
> Change-Id: I4bd6586478f2b040e5913314c4e47e92fc893a60
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/344756
> Reviewed-by: Brian Osman <brianosman@google.com>
> Commit-Queue: Greg Daniel <egdaniel@google.com>

TBR=egdaniel@google.com,brianosman@google.com

Change-Id: Ie4d33b557868e4906df9b7a3988072fdc79a19c7
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/344897
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
7 files changed