Remove ledger code from Chrome

chrome/common/extensions/api/schemas.gni

 # 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")
 
 gypi_values = exec_script(
     "//build/gypi_to_gn.py",
     [ rebase_path("schemas.gypi") ],
     "scope",
     [ "schemas.gypi" ])
 
 # Common sources that are both bundled and compiled.
 if (is_android) {
   # Should be eliminated. See crbug.com/305852.
   sources = gypi_values.android_schema_files
 } else {
   sources = gypi_values.main_schema_files
   if (is_chromeos) {
     sources += gypi_values.chromeos_schema_files
-    if (is_chrome_branded) {
-      sources += gypi_values.chromeos_branded_schema_files
-    }
   }
   if (enable_webrtc) {
     sources += gypi_values.webrtc_schema_files
   }
 }
 
 if (!is_android) {
   uncompiled_sources = gypi_values.main_non_compiled_schema_files
 }
 
 root_namespace = "extensions::api::%(namespace)s"