Drop virtual LightSource::create

Source/platform/graphics/filters/PointLightSource.h

Index: Source/platform/graphics/filters/PointLightSource.h
diff --git a/Source/platform/graphics/filters/PointLightSource.h b/Source/platform/graphics/filters/PointLightSource.h
index f5806d735872639ab37b00e8ffb2add96f69f3eb..25a533eca49e31f0689005c79f7aae4d36678b0d 100644
--- a/Source/platform/graphics/filters/PointLightSource.h
+++ b/Source/platform/graphics/filters/PointLightSource.h
@@ -34,12 +34,6 @@ public:
         return adoptRef(new PointLightSource(position));
     }
 
-    PassRefPtr<LightSource> create(const FloatPoint3D& scale, const FloatSize& offset) const override
-    {
-        FloatPoint3D position(m_position.x() * scale.x() - offset.width(), m_position.y() * scale.y() - offset.height(), m_position.z() * scale.z());
-        return adoptRef(new PointLightSource(position));
-    }
-
     const FloatPoint3D& position() const { return m_position; }
     bool setPosition(const FloatPoint3D&) override;