[EasyUnlock] Delete unused BLE code.

chrome/browser/extensions/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/features.gni")
 import("//build/config/ui.gni")
 import("//chrome/common/features.gni")
 import("//extensions/features/features.gni")
 import("//media/media_options.gni")
 import("//rlz/features/features.gni")
@@ skipping 831 matching lines @@
     "//components/navigation_interception",
     "//components/net_log",
     "//components/omnibox/browser",
     "//components/onc",
     "//components/password_manager/core/browser",
     "//components/pdf/browser",
     "//components/policy:generated",
     "//components/policy/core/browser",
     "//components/pref_registry",
     "//components/proximity_auth",
-    "//components/proximity_auth/ble",
     "//components/proximity_auth/logging",
     "//components/proxy_config",
     "//components/rappor",
     "//components/resources",
     "//components/safe_browsing_db:database_manager",
     "//components/safe_browsing_db:safe_browsing_prefs",
     "//components/safe_json",
     "//components/search_engines",
     "//components/sessions",
     "//components/signin/core/browser",
@@ skipping 313 matching lines @@
       "api/braille_display_private/brlapi_connection.cc",
       "api/braille_display_private/brlapi_connection.h",
       "api/braille_display_private/brlapi_keycode_map.cc",
       "api/braille_display_private/brlapi_keycode_map.h",
     ]
     deps += [ "//build/linux/libbrlapi" ]
   } else {
     sources += [ "api/braille_display_private/braille_controller_stub.cc" ]
   }
 }