Delete the audio modem and copresence private APIs.

chrome/chrome_browser_extensions.gypi

Index: chrome/chrome_browser_extensions.gypi
diff --git a/chrome/chrome_browser_extensions.gypi b/chrome/chrome_browser_extensions.gypi
index 121014af0814133f788497bfd40b3f7d91d93457..2b65aa70bb2c573c9b1c5ec4b1045e8ef217ee07 100644
--- a/chrome/chrome_browser_extensions.gypi
+++ b/chrome/chrome_browser_extensions.gypi
@@ -100,9 +100,6 @@
       'browser/apps/shortcut_manager.h',
       'browser/apps/shortcut_manager_factory.cc',
       'browser/apps/shortcut_manager_factory.h',
-      'browser/copresence/chrome_whispernet_client.cc',
-      'browser/copresence/chrome_whispernet_client.h',
-      'browser/copresence/chrome_whispernet_config.h',
       'browser/extensions/active_install_data.cc',
       'browser/extensions/active_install_data.h',
       'browser/extensions/active_tab_permission_granter.cc',
@@ -125,8 +122,6 @@
       'browser/extensions/activity_log/fullstream_ui_policy.h',
       'browser/extensions/api/activity_log_private/activity_log_private_api.cc',
       'browser/extensions/api/activity_log_private/activity_log_private_api.h',
-      'browser/extensions/api/audio_modem/audio_modem_api.cc',
-      'browser/extensions/api/audio_modem/audio_modem_api.h',
       'browser/extensions/api/autofill_private/autofill_private_api.cc',
       'browser/extensions/api/autofill_private/autofill_private_api.h',
       'browser/extensions/api/autofill_private/autofill_private_event_router.cc',
@@ -205,8 +200,6 @@
       'browser/extensions/api/cookies/cookies_api_constants.h',
       'browser/extensions/api/cookies/cookies_helpers.cc',
       'browser/extensions/api/cookies/cookies_helpers.h',
-      'browser/extensions/api/copresence_private/copresence_private_api.cc',
-      'browser/extensions/api/copresence_private/copresence_private_api.h',
       'browser/extensions/api/cryptotoken_private/cryptotoken_private_api.cc',
       'browser/extensions/api/cryptotoken_private/cryptotoken_private_api.h',
       'browser/extensions/api/dashboard_private/dashboard_private_api.cc',
@@ -957,7 +950,6 @@
         'debugger',
         'installer_util',
         'safe_browsing_proto',
-        '../components/components.gyp:audio_modem',
         '../components/components.gyp:dom_distiller_core',
         '../components/components.gyp:onc_component',
         '../components/components.gyp:policy',