This reverts commit 0ef049177f.
Reason for revert: Looks like this is introducing a memory leak.
Original change's description:
> Use Microsoft's ComPtr to wrap D3D12 objects.
>
> Change-Id: I4bd173428a2b65f0bc1994fb794ef9d4d68d5ba0
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/314957
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Reviewed-by: Greg Daniel <egdaniel@google.com>
> Commit-Queue: Jim Van Verth <jvanverth@google.com>
TBR=egdaniel@google.com,jvanverth@google.com,bsalomon@google.com
Change-Id: Ib0333c00a7f8c3650bd2b077cbdfb6926c5870f4
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/315653
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Commit-Queue: Jim Van Verth <jvanverth@google.com>
bbbc28e0ba