Remove GrGLGpu::configToGLFormats

src/gpu/gl/GrGLGpu.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 GrGLGpu_DEFINED
 #define GrGLGpu_DEFINED
 
@@ skipping 266 matching lines @@
     void setScratchTextureUnit();
 
     // bounds is region that may be modified and therefore has to be resolved.
     // nullptr means whole target. Can be an empty rect.
     void flushRenderTarget(GrGLRenderTarget*, const SkIRect* bounds);
 
     void flushStencil(const GrStencilSettings&);
     void flushHWAAState(GrRenderTarget* rt, bool useHWAA);
 
     void generateConfigTable();
-    bool configToGLFormats(GrPixelConfig config,
-                           bool getSizedInternal,
-                           GrGLenum* internalFormat,
-                           GrGLenum* externalFormat,
-                           GrGLenum* externalType) const;
+
     // helper for onCreateTexture and writeTexturePixels
     bool uploadTexData(const GrSurfaceDesc& desc,
                        GrGLenum target,
                        bool isNewTexture,
                        int left, int top, int width, int height,
                        GrPixelConfig dataConfig,
                        const void* data,
                        size_t rowBytes);
 
     // helper for onCreateCompressedTexture. If width and height are
@@ skipping 265 matching lines @@
         };
     };
 
     ConfigEntry fConfigTable[kGrPixelConfigCnt];
 
     typedef GrGpu INHERITED;
     friend class GrGLPathRendering; // For accessing setTextureUnit.
 };
 
 #endif