Cleanup unreachable cert adding code

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("//build/split_static_library.gni")
 import("//chrome/common/features.gni")
@@ skipping 2786 matching lines @@
       "search/local_ntp_source.cc",
       "search/local_ntp_source.h",
       "search/search_terms_tracker.cc",
       "search/search_terms_tracker.h",
       "signin/signin_promo.cc",
       "signin/signin_promo.h",
       "signin/signin_ui_util.cc",
       "signin/signin_ui_util.h",
       "speech/extension_api/tts_extension_api_constants.cc",  # Should be moved to extensions section?
       "speech/extension_api/tts_extension_api_constants.h",
-      "ssl/ssl_add_certificate.cc",
-      "ssl/ssl_add_certificate.h",
       "ssl/ssl_client_auth_observer.cc",
       "ssl/ssl_client_auth_observer.h",
       "status_icons/desktop_notification_balloon.cc",
       "status_icons/desktop_notification_balloon.h",
       "sync/glue/extension_data_type_controller.cc",
       "sync/glue/extension_data_type_controller.h",
       "sync/glue/extension_setting_data_type_controller.cc",
       "sync/glue/extension_setting_data_type_controller.h",
       "sync/sync_ui_util.cc",
       "sync/sync_ui_util.h",
@@ skipping 466 matching lines @@
       "profiles/profile_android.cc",
       "profiles/profile_android.h",
       "search/contextual_search_policy_handler_android.cc",
       "search/contextual_search_policy_handler_android.h",
       "search_engines/template_url_service_android.cc",
       "search_engines/template_url_service_android.h",
       "signin/oauth2_token_service_delegate_android.cc",
       "signin/oauth2_token_service_delegate_android.h",
       "ssl/security_state_model_android.cc",
       "ssl/security_state_model_android.h",
-      "ssl/ssl_add_certificate_android.cc",
       "sync/glue/synced_tab_delegate_android.cc",
       "sync/glue/synced_tab_delegate_android.h",
       "sync/glue/synced_window_delegate_android.cc",
       "sync/glue/synced_window_delegate_android.h",
       "sync/glue/synced_window_delegates_getter_android.cc",
       "sync/glue/synced_window_delegates_getter_android.h",
       "sync/profile_sync_service_android.cc",
       "sync/profile_sync_service_android.h",
       "sync/sessions/sync_sessions_metrics_android.cc",
       "sync/sessions/sync_sessions_metrics_android.h",
@@ skipping 934 matching lines @@
   # linking all of the test support.
   static_library("pepper_cdm_test_constants") {
     testonly = true
     visibility = [ "//chrome/*" ]
     sources = [
       "media/pepper_cdm_test_constants.cc",
       "media/pepper_cdm_test_constants.h",
     ]
   }
 }