Remove kernelUnitLength plumbing

Source/platform/graphics/filters/FESpecularLighting.h

Index: Source/platform/graphics/filters/FESpecularLighting.h
diff --git a/Source/platform/graphics/filters/FESpecularLighting.h b/Source/platform/graphics/filters/FESpecularLighting.h
index b051de64e474f00556c05f6c853e79ebf01ba487..1f8c6ac098376e6081d09bcba66ccb19303a0828 100644
--- a/Source/platform/graphics/filters/FESpecularLighting.h
+++ b/Source/platform/graphics/filters/FESpecularLighting.h
@@ -30,7 +30,7 @@ namespace blink {
 class PLATFORM_EXPORT FESpecularLighting : public FELighting {
 public:
     static PassRefPtrWillBeRawPtr<FESpecularLighting> create(Filter*, const Color&, float, float,
-        float, float, float, PassRefPtr<LightSource>);
+        float, PassRefPtr<LightSource>);
     ~FESpecularLighting() override;
 
     Color lightingColor() const;
@@ -45,19 +45,13 @@ public:
     float specularExponent() const;
     bool setSpecularExponent(float);
 
-    float kernelUnitLengthX() const;
-    bool setKernelUnitLengthX(float);
-
-    float kernelUnitLengthY() const;
-    bool setKernelUnitLengthY(float);
-
     const LightSource* lightSource() const;
     void setLightSource(PassRefPtr<LightSource>);
 
     TextStream& externalRepresentation(TextStream&, int indention) const override;
 
 private:
-    FESpecularLighting(Filter*, const Color&, float, float, float, float, float, PassRefPtr<LightSource>);
+    FESpecularLighting(Filter*, const Color&, float, float, float, PassRefPtr<LightSource>);
 };
 
 } // namespace blink