Revert "about_flags.cc entry for WebRTC-H264WithOpenH264FFmpeg"

chrome/browser/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/chrome_build.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//chrome/common/features.gni")
 import("//media/media_options.gni")
@@ skipping 172 matching lines @@
     "//components/user_prefs",
     "//components/user_prefs/tracked:user_prefs_tracked",
     "//components/variations",
     "//components/variations/net",
     "//components/variations/service",
     "//components/web_resource",
     "//components/webdata/common",
     "//components/webdata_services",
     "//content/public/browser",
     "//content/public/common",
-    "//content/public/common:feature_h264_with_openh264_ffmpeg",
-    "//content/public/common:features",
     "//courgette:courgette_lib",
     "//crypto",
     "//google_apis",
     "//gpu/config",
     "//skia",
     "//sql",
     "//sync",
     "//third_party/cacheinvalidation",
     "//third_party/icu",
     "//third_party/libjingle",
@@ skipping 1147 matching lines @@
         rebase_path(gypi_values.chrome_browser_rlz_sources, ".", "//chrome")
     deps = [
       "//components/google/core/browser",
       "//components/omnibox/browser",
       "//components/rlz",
       "//components/search_engines",
       "//rlz:rlz_lib",
     ]
   }
 }