Revert of Re-proc SkBlitRow::Color32 for ARM.

src/opts/SkBlitRow_opts_arm.cpp

 /*
  * Copyright 2012 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 "SkBlitRow.h"
 #include "SkColorPriv.h"
 #include "SkDither.h"
@@ skipping 372 matching lines @@
 }
 
 SkBlitRow::ColorProc16 SkBlitRow::PlatformColorFactory565(unsigned flags) {
     return SK_ARM_NEON_WRAP(sk_blitrow_platform_565_colorprocs_arm)[flags];
 }
 
 SkBlitRow::Proc32 SkBlitRow::PlatformProcs32(unsigned flags) {
     return SK_ARM_NEON_WRAP(sk_blitrow_platform_32_procs_arm)[flags];
 }
 
-SkBlitRow::Color32Proc SkBlitRow::PlatformColor32Proc() {
-    #define sk_blitrow_color32_arm NULL
-    return SK_ARM_NEON_WRAP(sk_blitrow_color32_arm);
-}