Cleanup the ARM blitrow optimizations

src/opts/SkBlitRow_opts_arm.h

-/*
- * Copyright 2012 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-#ifndef SkBlitRow_opts_arm_DEFINED
-#define SkBlitRow_opts_arm_DEFINED
-
-#include "SkBlitRow.h"
-#include "SkUtilsArm.h"
-
-// Define USE_NEON_CODE to indicate that we need to build NEON routines
-#define USE_NEON_CODE  (!SK_ARM_NEON_IS_NONE)
-
-// Define USE_ARM_CODE to indicate that we need to build ARM routines
-#define USE_ARM_CODE   (!SK_ARM_NEON_IS_ALWAYS)
-
-#if USE_NEON_CODE
-// These are defined in SkBlitRow_opts_arm_neon.cpp
-extern const SkBlitRow::Proc sk_blitrow_platform_565_procs_arm_neon[];
-extern const SkBlitRow::Proc32 sk_blitrow_platform_32_procs_arm_neon[];
-
-extern void Color32_arm_neon(SkPMColor* dst, const SkPMColor* src, int count,
-                             SkPMColor color);
-#endif
-
-#if USE_ARM_CODE
-// These are defined in SkBlitRow_opts_arm.cpp
-extern const SkBlitRow::Proc sk_blitrow_platform_565_procs_arm[];
-extern const SkBlitRow::Proc32 sk_blitrow_platform_32_procs_arm[];
-#endif
-
-// Defined in SkBlitRow_opts_arm.cpp, used in all cases.
-extern void S32A_Blend_BlitRow32_arm(SkPMColor* SK_RESTRICT dst,
-                                     const SkPMColor* SK_RESTRICT src,
-                                     int count, U8CPU alpha);
-
-#endif