Remove gpu support for willUseHWAALines.

src/gpu/GrDrawTarget.cpp

Index: src/gpu/GrDrawTarget.cpp
diff --git a/src/gpu/GrDrawTarget.cpp b/src/gpu/GrDrawTarget.cpp
index 72204fa14bfecbd81bff6619f709120e96ac4d3d..28369fde887e604abc6a2fa1bfb8290548ff8ba7 100644
--- a/src/gpu/GrDrawTarget.cpp
+++ b/src/gpu/GrDrawTarget.cpp
@@ -613,19 +613,6 @@ void GrDrawTarget::removeGpuTraceMarker(const GrGpuTraceMarker* marker) {
 
 ////////////////////////////////////////////////////////////////////////////////
 
-bool GrDrawTarget::willUseHWAALines() const {
-    // There is a conflict between using smooth lines and our use of premultiplied alpha. Smooth
-    // lines tweak the incoming alpha value but not in a premul-alpha way. So we only use them when
-    // our alpha is 0xff and tweaking the color for partial coverage is OK
-    if (!this->caps()->hwAALineSupport() ||
-        !this->getDrawState().isHWAntialiasState()) {
-        return false;
-    }
-    GrDrawState::BlendOptFlags opts = this->getDrawState().getBlendOpts();
-    return (GrDrawState::kDisableBlend_BlendOptFlag & opts) &&
-           (GrDrawState::kCoverageAsAlpha_BlendOptFlag & opts);
-}
-
 bool GrDrawTarget::canApplyCoverage() const {
     // we can correctly apply coverage if a) we have dual source blending
     // or b) one of our blend optimizations applies.