Revert of SkRTConf: reduce functionality to what we use, increase simplicity

src/opts/opts_check_x86.cpp

 /*
  * Copyright 2009 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBitmapFilter_opts_SSE2.h"
 #include "SkBitmapProcState_opts_SSE2.h"
 #include "SkBitmapProcState_opts_SSSE3.h"
 #include "SkBitmapScaler.h"
 #include "SkBlitMask.h"
 #include "SkBlitRow.h"
 #include "SkBlitRow_opts_SSE2.h"
 #include "SkCpu.h"
+#include "SkRTConf.h"
 
 
 /*
  *****************************************
  *********This file is deprecated*********
  *****************************************
  * New CPU-specific work should be done in
  * SkOpts framework. Run-time detection of
  * available instruction set extensions is
  * implemented in src/core/SkOpts.cpp file
@@ skipping 128 matching lines @@
         }
     } else {
         return nullptr;
     }
 
 }
 
 SkBlitMask::RowProc SkBlitMask::PlatformRowProcs(SkColorType, SkMask::Format, RowFlags) {
     return nullptr;
 }