Remove the unused SkCachePreload_arm

Signed-off-by: Kévin PETIT <kevin.petit@arm.com>

BUG=skia:
R=djsollen@google.com, mtklein@google.com

Author: kevin.petit@arm.com

Review URL: https://codereview.chromium.org/263553008

git-svn-id: http://skia.googlecode.com/svn/trunk@14456 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/opts/SkBlitRow_opts_arm.cpp b/src/opts/SkBlitRow_opts_arm.cpp
index c334e49..34b8564 100644
--- a/src/opts/SkBlitRow_opts_arm.cpp
+++ b/src/opts/SkBlitRow_opts_arm.cpp
@@ -12,8 +12,6 @@
 #include "SkUtils.h"
 #include "SkUtilsArm.h"
 
-#include "SkCachePreload_arm.h"
-
 // Define USE_NEON_CODE to indicate that we need to build NEON routines
 #define USE_NEON_CODE  (!SK_ARM_NEON_IS_NONE)
 
diff --git a/src/opts/SkBlitRow_opts_arm_neon.cpp b/src/opts/SkBlitRow_opts_arm_neon.cpp
index 9503323..f6fd063 100644
--- a/src/opts/SkBlitRow_opts_arm_neon.cpp
+++ b/src/opts/SkBlitRow_opts_arm_neon.cpp
@@ -14,7 +14,6 @@
 #include "SkMathPriv.h"
 #include "SkUtils.h"
 
-#include "SkCachePreload_arm.h"
 #include "SkColor_opts_neon.h"
 #include <arm_neon.h>
 
diff --git a/src/opts/SkCachePreload_arm.h b/src/opts/SkCachePreload_arm.h
deleted file mode 100644
index cff8c2a..0000000
--- a/src/opts/SkCachePreload_arm.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * 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.
- */
-#ifndef SkCachePreload_arm_DEFINED
-#define SkCachePreload_arm_DEFINED
-
-// This file defines macros for preload instructions for ARM. These macros
-// are designed to be embedded inside GNU inline assembly.
-// For the use of these macros, __ARM_USE_PLD needs to be enabled. The cache
-// line size also needs to be known (and needs to be contained inside
-// __ARM_CACHE_LINE_SIZE).
-#if defined(__ARM_USE_PLD)
-
-#define PLD(x, n)           "pld        [%["#x"], #("#n")]\n\t"
-
-#if __ARM_CACHE_LINE_SIZE == 32
-    #define PLD64(x, n)      PLD(x, n) PLD(x, (n) + 32)
-#elif __ARM_CACHE_LINE_SIZE == 64
-    #define PLD64(x, n)      PLD(x, n)
-#else
-    #error "unknown __ARM_CACHE_LINE_SIZE."
-#endif
-#else
-    // PLD is disabled, all macros become empty.
-    #define PLD(x, n)
-    #define PLD64(x, n)
-#endif
-
-#define PLD128(x, n)         PLD64(x, n) PLD64(x, (n) + 64)
-
-#endif  // SkCachePreload_arm_DEFINED