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

media/base/simd/convert_yuv_to_rgb_sse.asm

Index: media/base/simd/convert_yuv_to_rgb_sse.asm
diff --git a/media/base/simd/convert_yuv_to_rgb_sse.asm b/media/base/simd/convert_yuv_to_rgb_sse.asm
deleted file mode 100644
index f666243edc3cd6ea5f8a8b8380a1d3f00b702aa8..0000000000000000000000000000000000000000
--- a/media/base/simd/convert_yuv_to_rgb_sse.asm
+++ /dev/null
@@ -1,24 +0,0 @@
-; Copyright (c) 2011 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.
-
-%include "third_party/x86inc/x86inc.asm"
-
-;
-; This file uses MMX and SSE instructions.
-;
-  SECTION_TEXT
-  CPU       MMX, SSE
-
-; Use SSE instruction movntq can write faster.
-%define MOVQ movntq
-
-;
-; extern "C" void ConvertYUVToRGB32Row_SSE(const uint8_t* y_buf,
-;                                          const uint8_t* u_buf,
-;                                          const uint8_t* v_buf,
-;                                          uint8_t* rgb_buf,
-;                                          ptrdiff_t width);
-;                                          const int16_t* convert_table);
-%define SYMBOL ConvertYUVToRGB32Row_SSE
-%include "convert_yuv_to_rgb_mmx.inc"