Revert of Begin instanced rendering for simple shapes

include/private/GrInstancedPipelineInfo.h

-/*
- * Copyright 2016 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef GrGrInstancedPipelineInfo_DEFINED
-#define GrGrInstancedPipelineInfo_DEFINED
-
-#include "GrRenderTarget.h"
-
-/**
- * Provides info about the pipeline that GrInstancedRendering needs in order to select appropriate
- * drawing algorithms.
- */
-struct GrInstancedPipelineInfo {
-    GrInstancedPipelineInfo(const GrRenderTarget* rt)
-        : fIsMultisampled(rt->isStencilBufferMultisampled()),
-          fIsMixedSampled(rt->hasMixedSamples()),
-          fIsRenderingToFloat(GrPixelConfigIsFloatingPoint(rt->desc().fConfig)),
-          fColorDisabled(false),
-          fDrawingShapeToStencil(false),
-          fCanDiscard(false) {
-    }
-
-    bool canUseCoverageAA() const {
-        return !fIsMultisampled || (fIsMixedSampled && !fDrawingShapeToStencil);
-    }
-
-    bool fIsMultisampled         : 1;
-    bool fIsMixedSampled         : 1;
-    bool fIsRenderingToFloat     : 1;
-    bool fColorDisabled          : 1;
-    /**
-     * Indicates that the instanced renderer should take extra precautions to ensure the shape gets
-     * drawn correctly to the stencil buffer (e.g. no coverage AA). NOTE: this does not mean a
-     * stencil test is or is not active.
-     */
-    bool fDrawingShapeToStencil  : 1;
-    /**
-     * Indicates that the instanced renderer can use processors with discard instructions. This
-     * should not be set if the shader will use derivatives, automatic mipmap LOD, or other features
-     * that depend on neighboring pixels. Some draws will fail to create if this is not set.
-     */
-    bool fCanDiscard             : 1;
-};
-
-#endif