Remove unconditional -msse3 -mssse3 CFLAGS from media.gyp.

media/media.gyp

 # Copyright (c) 2012 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.
 
 {
   'variables': {
     'chromium_code': 1,
     # Override to dynamically link the PulseAudio library.
     'use_pulseaudio%': 0,
   },
@@ skipping 451 matching lines @@
         [ 'target_arch == "x64"', {
           # Source files optimized for X64 systems.
           'sources': [
             'base/simd/linear_scale_yuv_to_rgb_mmx_x64.asm',
             'base/simd/scale_yuv_to_rgb_sse2_x64.asm',
           ],
         }],
         [ 'os_posix == 1 and OS != "mac" and OS != "android"', {
           'cflags': [
             '-msse2',
-            '-msse3',
-            '-mssse3',
-          ],
-        }],
-        [ 'OS == "openbsd"', {
-          # OpenBSD's gcc (4.2.1) does not support -mssse3
-          'cflags!': [
-            '-mssse3',
           ],
         }],
         [ 'OS == "mac"', {
           'configurations': {
             'Debug': {
               'xcode_settings': {
                 # gcc on the mac builds horribly unoptimized sse code in debug
                 # mode. Since this is rarely going to be debugged, run with full
                 # optimizations in Debug as well as Release.
                 'GCC_OPTIMIZATION_LEVEL': '3',  # -O3
@@ skipping 409 matching lines @@
             '../third_party/ffmpeg/ffmpeg.gyp:ffmpeg',
           ],
           'sources': [
             'tools/media_bench/media_bench.cc',
           ],
         },
       ],
     }]
   ],
 }