Remove all .gyp and .gypi files.

build/linux/unbundle/ffmpeg.gyp

-# 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.
-
-{
-  'targets': [
-    {
-      'target_name': 'ffmpeg',
-      'type': 'none',
-      'direct_dependent_settings': {
-        'cflags': [
-          '<!@(pkg-config --cflags libavcodec libavformat libavutil)',
-
-          '<!(python <(DEPTH)/tools/compile_test/compile_test.py '
-              '--code "#define __STDC_CONSTANT_MACROS\n'
-              '#include <libavcodec/avcodec.h>\n'
-              'int test() { return AV_CODEC_ID_OPUS; }" '
-              '--on-failure -DCHROMIUM_OMIT_AV_CODEC_ID_OPUS=1)',
-
-          '<!(python <(DEPTH)/tools/compile_test/compile_test.py '
-              '--code "#define __STDC_CONSTANT_MACROS\n'
-              '#include <libavcodec/avcodec.h>\n'
-              'int test() { return AV_CODEC_ID_VP9; }" '
-              '--on-failure -DCHROMIUM_OMIT_AV_CODEC_ID_VP9=1)',
-
-          '<!(python <(DEPTH)/tools/compile_test/compile_test.py '
-              '--code "#define __STDC_CONSTANT_MACROS\n'
-              '#include <libavcodec/avcodec.h>\n'
-              'int test() { return AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL; }" '
-              '--on-failure -DCHROMIUM_OMIT_AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL=1)',
-
-          '<!(python <(DEPTH)/tools/compile_test/compile_test.py '
-              '--code "#define __STDC_CONSTANT_MACROS\n'
-              '#include <libavcodec/avcodec.h>\n'
-              'int test() { struct AVFrame frame;\n'
-              'return av_frame_get_channels(&frame); }" '
-              '--on-failure -DCHROMIUM_NO_AVFRAME_CHANNELS=1)',
-        ],
-        'defines': [
-          '__STDC_CONSTANT_MACROS',
-          'USE_SYSTEM_FFMPEG',
-        ],
-      },
-      'link_settings': {
-        'ldflags': [
-          '<!@(pkg-config --libs-only-L --libs-only-other libavcodec libavformat libavutil)',
-        ],
-        'libraries': [
-          '<!@(pkg-config --libs-only-l libavcodec libavformat libavutil)',
-        ],
-      },
-    },
-  ],
-}