remove path specific program building classes

src/gpu/gl/GrGLPathProgram.h

-/*
- * Copyright 2015 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef GrGLPathProgram_DEFINED
-#define GrGLPathProgram_DEFINED
-
-#include "gl/GrGLProgram.h"
-#include "gl/GrGLPathProgramDataManager.h"
-
-/*
- * The default GrGL programs consist of at the very least a vertex and fragment shader.
- * 1.3+ Nvpr ignores the vertex shader, but both require
- * specialized methods for setting transform data.  NVPR also requires setting the
- * projection matrix through a special function call.
- */
-class GrGLPathProgram : public GrGLProgram {
-protected:
-    typedef GrGLPathProgramDataManager::SeparableVaryingInfoArray SeparableVaryingInfoArray;
-    GrGLPathProgram(GrGLGpu*,
-                    const GrProgramDesc&,
-                    const BuiltinUniformHandles&,
-                    GrGLuint programID,
-                    const UniformInfoArray&,
-                    const SeparableVaryingInfoArray&,
-                    GrGLInstalledGeoProc*,
-                    GrGLInstalledXferProc* xferProcessor,
-                    GrGLInstalledFragProcs* fragmentProcessors,
-                    SkTArray<UniformHandle>* passSamplerUniforms);
-
-private:
-    void didSetData() override;
-    virtual void setTransformData(const GrPrimitiveProcessor&,
-                                  const GrFragmentProcessor&,
-                                  int index,
-                                  GrGLInstalledFragProc*) override;
-    void onSetRenderTargetState(const GrPrimitiveProcessor&, const GrPipeline&) override;
-
-    friend class GrGLPathProgramBuilder;
-
-    GrGLPathProgramDataManager fPathProgramDataManager;
-
-    typedef GrGLProgram INHERITED;
-};
-
-#endif