Clean up GrGLSLFragmentProcessor-derived classes

In some other patches it was observed that many of the GrGLSLFragmentProcessor-derived classes needlessly pass a parameter to their constructors.

GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1666773002

Review URL: https://codereview.chromium.org/1666773002
diff --git a/src/effects/SkPerlinNoiseShader.cpp b/src/effects/SkPerlinNoiseShader.cpp
index 60e9601..f66655c 100644
--- a/src/effects/SkPerlinNoiseShader.cpp
+++ b/src/effects/SkPerlinNoiseShader.cpp
@@ -473,9 +473,8 @@
 class GrGLPerlinNoise : public GrGLSLFragmentProcessor {
 public:
     GrGLPerlinNoise(const GrProcessor&);
-    virtual ~GrGLPerlinNoise() {}
 
-    virtual void emitCode(EmitArgs&) override;
+    void emitCode(EmitArgs&) override;
 
     static inline void GenKey(const GrProcessor&, const GrGLSLCaps&, GrProcessorKeyBuilder* b);
 
@@ -490,7 +489,6 @@
     int                                     fNumOctaves;
     GrGLSLProgramDataManager::UniformHandle fBaseFrequencyUni;
 
-private:
     typedef GrGLSLFragmentProcessor INHERITED;
 };