Remove remaining traces of CreateGpuMemoryBufferImageCHROMIUM

gpu/command_buffer/cmd_buffer_functions.txt

Index: gpu/command_buffer/cmd_buffer_functions.txt
diff --git a/gpu/command_buffer/cmd_buffer_functions.txt b/gpu/command_buffer/cmd_buffer_functions.txt
index be806134cdc9dc2d120da8c984ba9f92733c815a..e0db0f59d457fdf8ec7e4ab65a73722e960bffcf 100644
--- a/gpu/command_buffer/cmd_buffer_functions.txt
+++ b/gpu/command_buffer/cmd_buffer_functions.txt
@@ -276,7 +276,6 @@ GL_APICALL void         GL_APIENTRY glGetTransformFeedbackVaryingsCHROMIUM (GLid
 GL_APICALL void         GL_APIENTRY glGetUniformsES3CHROMIUM (GLidProgram program, GLsizeiNotNegative bufsize, GLsizei* size, void* info);
 GL_APICALL GLuint       GL_APIENTRY glCreateImageCHROMIUM (ClientBuffer buffer, GLsizei width, GLsizei height, GLenum internalformat);
 GL_APICALL void         GL_APIENTRY glDestroyImageCHROMIUM (GLuint image_id);
-GL_APICALL GLuint       GL_APIENTRY glCreateGpuMemoryBufferImageCHROMIUM (GLsizei width, GLsizei height, GLenum internalformat, GLenum usage);
 GL_APICALL void         GL_APIENTRY glDescheduleUntilFinishedCHROMIUM (void);
 GL_APICALL void         GL_APIENTRY glGetTranslatedShaderSourceANGLE (GLidShader shader, GLsizeiNotNegative bufsize, GLsizeiOptional* length, char* source);
 GL_APICALL void         GL_APIENTRY glPostSubBufferCHROMIUM (GLint x, GLint y, GLint width, GLint height);