remove SK_SUPPORT_LEGACY_SETSHADER_PTR flag (unused)

skia/config/SkUserConfig.h

 /*
  * Copyright (C) 2006 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
@@ skipping 232 matching lines @@
 #endif
 
 #ifndef    SK_SUPPORT_LEGACY_EVAL_CUBIC
 #   define SK_SUPPORT_LEGACY_EVAL_CUBIC
 #endif
 
 #ifndef    SK_SUPPORT_LEGACY_PEEKPIXELS_PARMS
 #   define SK_SUPPORT_LEGACY_PEEKPIXELS_PARMS
 #endif
 
-#ifndef    SK_SUPPORT_LEGACY_SETSHADER_PTR
-#   define SK_SUPPORT_LEGACY_SETSHADER_PTR
-#endif
-
 #ifndef    SK_SUPPORT_LEGACY_TYPEFACE_PTR
 #   define SK_SUPPORT_LEGACY_TYPEFACE_PTR
 #endif
 
 #ifndef    SK_SUPPORT_LEGACY_MASKFILTER_PTR
 #   define SK_SUPPORT_LEGACY_MASKFILTER_PTR
 #endif
 
 ///////////////////////// Imported from BUILD.gn and skia_common.gypi
 
@@ skipping 18 matching lines @@
 #define SK_SUPPORT_LEGACY_DIVBITS_UB
 
 // mtklein's fiddling with Src / SrcOver.  Will rebaseline these only once when done.
 #define SK_SUPPORT_LEGACY_X86_BLITS
 
 #define SK_DISABLE_TILE_IMAGE_FILTER_OPTIMIZATION
 
 // ===== End Chrome-specific definitions =====
 
 #endif