Revert "Temporarily disable creating D3D debug device." This reverts commit 3d544fffe7ff9284b21e3a15f638297c827bbc21. Reason for revert: Seems like flakiness is not related. Suppress D3D11 test failures uncovered by re-enabling D3D debug device: ComputeShaderTest.DispatchCompute Texture2DTestES3.TextureImplPropogatesDirtyBits D3DTextureTestMS.* Also a small fix to ANGLETestBase::checkD3D11SDKLayersMessages to clear reported messages, otherwise the failures are also reported for tests following the one with the actual failure. Original change's description: > Temporarily disable creating D3D debug device. > > To diagnose whether Windows Intel end2end tests flakiness > is related to creating debug device and new version of Windows SDK. > > Bug: angleproject:3153 > Change-Id: Ica7eae3fe875e22203b6dfd98b83604d66a97737 > Reviewed-on: https://chromium-review.googlesource.com/c/1476954 > Reviewed-by: Geoff Lang <geofflang@chromium.org> > Commit-Queue: Yuly Novikov <ynovikov@chromium.org> Bug: angleproject:3153, angleproject:3493 Bug: angleproject:3501, angleproject:3512, angleproject:3513 Change-Id: I232da72aa09c2b9230cf179dd54e1731f8365f8e Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1480854 Reviewed-by: Yuly Novikov <ynovikov@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Yuly Novikov <ynovikov@chromium.org>