Revert "Narrow clear-as-draw workaround on D3D11 ANGLE"

This reverts commit 3dc93896b3a9c368c9f051a20822c35fd2efc25c.

Reason for revert: Intel and ANGLE still don't play well together

Original change's description:
> Narrow clear-as-draw workaround on D3D11 ANGLE
> 
> Bug: skia:
> Change-Id: Ib2714b448b078a09d43a28fd5bd7329706b516b8
> Reviewed-on: https://skia-review.googlesource.com/c/188310
> Commit-Queue: Robert Phillips <robertphillips@google.com>
> Auto-Submit: Michael Ludwig <michaelludwig@google.com>
> Reviewed-by: Robert Phillips <robertphillips@google.com>

TBR=robertphillips@google.com,michaelludwig@google.com

Change-Id: I0ce3cecd97b0e696a3805166394ec7f55fbebe20
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/c/188639
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
3 files changed