Revert of Add command buffer support for GL_EXT_texture_sRGB_decode

gpu/command_buffer/common/gles2_cmd_utils_implementation_autogen.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file is auto-generated from
 // gpu/command_buffer/build_gles2_cmd_buffer.py
 // It's formatted by clang-format using chromium coding style:
 //    clang-format -i -style=chromium filename
 // DO NOT EDIT!
 
@@ skipping 4810 matching lines @@
       {GL_RGB10_A2, "GL_RGB10_A2"},
       {GL_RGBA16F, "GL_RGBA16F"},
       {GL_RGB_YCRCB_420_CHROMIUM, "GL_RGB_YCRCB_420_CHROMIUM"},
       {GL_RGB_YCBCR_422_CHROMIUM, "GL_RGB_YCBCR_422_CHROMIUM"},
       {GL_RGB_YCBCR_420V_CHROMIUM, "GL_RGB_YCBCR_420V_CHROMIUM"},
   };
   return GLES2Util::GetQualifiedEnumString(string_table,
                                            arraysize(string_table), value);
 }
 
-std::string GLES2Util::GetStringTextureSrgbDecodeExt(uint32_t value) {
-  static const EnumToString string_table[] = {
-      {GL_DECODE_EXT, "GL_DECODE_EXT"},
-      {GL_SKIP_DECODE_EXT, "GL_SKIP_DECODE_EXT"},
-  };
-  return GLES2Util::GetQualifiedEnumString(string_table,
-                                           arraysize(string_table), value);
-}
-
 std::string GLES2Util::GetStringTextureStencilRenderableInternalFormat(
     uint32_t value) {
   static const EnumToString string_table[] = {
       {GL_STENCIL_INDEX8, "GL_STENCIL_INDEX8"},
       {GL_DEPTH24_STENCIL8, "GL_DEPTH24_STENCIL8"},
       {GL_DEPTH32F_STENCIL8, "GL_DEPTH32F_STENCIL8"},
   };
   return GLES2Util::GetQualifiedEnumString(string_table,
                                            arraysize(string_table), value);
 }
@@ skipping 148 matching lines @@
 
 std::string GLES2Util::GetStringVertexPointer(uint32_t value) {
   static const EnumToString string_table[] = {
       {GL_VERTEX_ATTRIB_ARRAY_POINTER, "GL_VERTEX_ATTRIB_ARRAY_POINTER"},
   };
   return GLES2Util::GetQualifiedEnumString(string_table,
                                            arraysize(string_table), value);
 }
 
 #endif  // GPU_COMMAND_BUFFER_COMMON_GLES2_CMD_UTILS_IMPLEMENTATION_AUTOGEN_H_