Revert "Re-land "D3D11: Implement dirty bits for VertexArray11.""" Seems to make the following dEQP test flaky: dEQP-GLES3.functional.lifetime.attach.deleted_output.buffer_transform_feedback doesn't show up on every bot test, but run it a few times and it'll flake. Reverting while I investigate. BUG=angleproject:1327 This reverts commit 3477f3a62dc139a253a0b361ee138116e9fa881f. Change-Id: Ic23a392526f5f6e107cf0aa06448389804d6b208 Reviewed-on: https://chromium-review.googlesource.com/337961 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>