Delete media/base/yuv_convert and dependents. Prefer libyuv.

media/base/simd/xcode_hack.c

Index: media/base/simd/xcode_hack.c
diff --git a/media/base/simd/xcode_hack.c b/media/base/simd/xcode_hack.c
deleted file mode 100644
index ee0b615d638401b6561252243080385b9fcce6e5..0000000000000000000000000000000000000000
--- a/media/base/simd/xcode_hack.c
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// XCode doesn't want to link a pure assembly target and will fail
-// to link when it creates an empty file list.  So add a dummy file
-// keep the linker happy.  See http://crbug.com/157073
-int xcode_sucks() {
-  return 0;
-}