remove path specific program building classes

src/gpu/gl/builders/GrGLPathProgramBuilder.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 GrGLPathProgramBuilder_DEFINED
-#define GrGLPathProgramBuilder_DEFINED
-
-#include "GrGLProgramBuilder.h"
-
-class GrGLPathProgramBuilder : public GrGLProgramBuilder {
-public:
-    GrGLPathProgramBuilder(GrGLGpu* gpu, const DrawArgs& args);
-
-    GrGLProgram* createProgram(GrGLuint programID) override;
-
-    SeparableVaryingHandle addSeparableVarying(const char* name, GrGLVertToFrag* v,
-                                               GrSLPrecision fsPrecision) override;
-    void bindProgramResourceLocations(GrGLuint programID) override;
-    void resolveProgramResourceLocations(GrGLuint programID) override;
-
-private:
-    typedef GrGLPathProgramDataManager::SeparableVaryingInfo SeparableVaryingInfo;
-    typedef GrGLPathProgramDataManager::SeparableVaryingInfoArray SeparableVaryingInfoArray;
-
-    SeparableVaryingInfoArray fSeparableVaryingInfos;
-
-    typedef GrGLProgramBuilder INHERITED;
-};
-
-#endif