Revert of Enable stencil clipping in mixed sampled render targets

src/gpu/gl/GrGLGpu.cpp

Index: src/gpu/gl/GrGLGpu.cpp
diff --git a/src/gpu/gl/GrGLGpu.cpp b/src/gpu/gl/GrGLGpu.cpp
index cd6bf39adc76c71f3ee6c3172fe24e164eb49f71..5388387c3b0104a198ab58bae9b6c5b974fde7ce 100644
--- a/src/gpu/gl/GrGLGpu.cpp
+++ b/src/gpu/gl/GrGLGpu.cpp
@@ -1476,7 +1476,7 @@
     GrGLRenderTarget* glRT = static_cast<GrGLRenderTarget*>(pipeline.getRenderTarget());
     this->flushStencil(pipeline.getStencil());
     this->flushScissor(pipeline.getScissorState(), glRT->getViewport(), glRT->origin());
-    this->flushHWAAState(glRT, pipeline.isHWAntialiasState(), !pipeline.getStencil().isDisabled());
+    this->flushHWAAState(glRT, pipeline.isHWAntialiasState());
 
     // This must come after textures are flushed because a texture may need
     // to be msaa-resolved (which will modify bound FBO state).
@@ -1897,22 +1897,6 @@
         }
     }
     return true;
-}
-
-void GrGLGpu::setColocatedSampleLocations(GrRenderTarget* rt, bool useColocatedSampleLocations) {
-    GrGLRenderTarget* target = static_cast<GrGLRenderTarget*>(rt->asRenderTarget());
-    SkASSERT(0 != target->renderFBOID());
-
-    if (!rt->isStencilBufferMultisampled() ||
-        useColocatedSampleLocations == target->usesColocatedSampleLocations()) {
-        return;
-    }
-
-    GL_CALL(NamedFramebufferParameteri(target->renderFBOID(),
-                                       GR_GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS,
-                                       useColocatedSampleLocations));
-
-    target->flagAsUsingColocatedSampleLocations(useColocatedSampleLocations);
 }
 
 void GrGLGpu::flushRenderTarget(GrGLRenderTarget* target, const SkIRect* bound) {
@@ -2162,18 +2146,8 @@
     }
 }
 
-void GrGLGpu::flushHWAAState(GrRenderTarget* rt, bool useHWAA, bool stencilEnabled) {
+void GrGLGpu::flushHWAAState(GrRenderTarget* rt, bool useHWAA) {
     SkASSERT(!useHWAA || rt->isStencilBufferMultisampled());
-
-    if (rt->hasMixedSamples() && stencilEnabled &&
-        this->glCaps().glslCaps()->programmableSampleLocationsSupport()) {
-        if (useHWAA) {
-            this->setColocatedSampleLocations(rt, false);
-        } else {
-            this->setColocatedSampleLocations(rt, true);
-        }
-        useHWAA = true;
-    }
 
     if (this->glCaps().multisampleDisableSupport()) {
         if (useHWAA) {
@@ -2954,7 +2928,7 @@
     this->flushBlend(blendInfo);
     this->flushColorWrite(true);
     this->flushDrawFace(GrPipelineBuilder::kBoth_DrawFace);
-    this->flushHWAAState(dstRT, false, false);
+    this->flushHWAAState(dstRT, false);
     this->disableScissor();
     GrStencilSettings stencil;
     stencil.setDisabled();