Remove unused functions from GrGLVertexBuffer / IndexBuffer

src/gpu/gl/GrGLIndexBuffer.h

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrGLIndexBuffer_DEFINED
 #define GrGLIndexBuffer_DEFINED
 
 #include "GrIndexBuffer.h"
 #include "GrGLBufferImpl.h"
 #include "gl/GrGLInterface.h"
 
 class GrGLGpu;
 
 class GrGLIndexBuffer : public GrIndexBuffer {
 
 public:
     typedef GrGLBufferImpl::Desc Desc;
 
     GrGLIndexBuffer(GrGLGpu* gpu, const Desc& desc);
 
     GrGLuint bufferID() const { return fImpl.bufferID(); }
     size_t baseOffset() const { return fImpl.baseOffset(); }
 
-    void bind() const {
-        if (!this->wasDestroyed()) {
-            fImpl.bind(this->getGpuGL());
-        }
-    }
-
 protected:
     void onAbandon() override;
     void onRelease() override;
     void setMemoryBacking(SkTraceMemoryDump* traceMemoryDump,
                           const SkString& dumpName) const override;
 
 private:
     void* onMap() override;
     void onUnmap() override;
     bool onUpdateData(const void* src, size_t srcSizeInBytes) override;
 
     GrGLGpu* getGpuGL() const {
         SkASSERT(!this->wasDestroyed());
         return (GrGLGpu*)(this->getGpu());
     }
 
     GrGLBufferImpl fImpl;
 
     typedef GrIndexBuffer INHERITED;
 };
 
 #endif