Patch to remove constant attributes

include/gpu/gl/GrGLConfig.h

Index: include/gpu/gl/GrGLConfig.h
diff --git a/include/gpu/gl/GrGLConfig.h b/include/gpu/gl/GrGLConfig.h
index 444be00f158d26a912f0ae4b256e7a40a07d6b4e..4b3ab8b258424be1768a7ddede3081a9ee84894d 100644
--- a/include/gpu/gl/GrGLConfig.h
+++ b/include/gpu/gl/GrGLConfig.h
@@ -46,12 +46,6 @@
  * GR_GL_CHECK_ERROR_START: controls the initial value of gCheckErrorGL
  * when GR_GL_CHECK_ERROR is 1.  Defaults to 1.
  *
- * GR_GL_NO_CONSTANT_ATTRIBUTES: if this evaluates to true then the GL backend
- * will use uniforms instead of attributes in all cases when there is not
- * per-vertex data. This is important when the underlying GL implementation
- * doesn't actually support immediate style attribute values (e.g. when
- * the GL stream is converted to DX as in ANGLE on Chrome). Defaults to 0.
- *
  * GR_GL_USE_BUFFER_DATA_NULL_HINT: When specifing new data for a vertex/index
  * buffer that replaces old data Ganesh can give a hint to the driver that the
  * previous data will not be used in future draws like this:
@@ -126,10 +120,6 @@
     #define GR_GL_CHECK_ERROR_START                     1
 #endif
 
-#if !defined(GR_GL_NO_CONSTANT_ATTRIBUTES)
-    #define GR_GL_NO_CONSTANT_ATTRIBUTES                0
-#endif
-
 #if !defined(GR_GL_USE_BUFFER_DATA_NULL_HINT)
     #define GR_GL_USE_BUFFER_DATA_NULL_HINT             1
 #endif