Android: Remove unneeded RegisterNatives() calls

android_webview/native/BUILD.gn

 # Copyright 2015 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/android/config.gni")
 import("//build/config/android/rules.gni")
 
 source_set("native") {
   deps = [
     ":native_jni",
@@ skipping 62 matching lines @@
     "aw_message_port_service_impl.h",
     "aw_metrics_switch.cc",
     "aw_metrics_switch.h",
     "aw_pdf_exporter.cc",
     "aw_pdf_exporter.h",
     "aw_picture.cc",
     "aw_picture.h",
     "aw_quota_manager_bridge_impl.cc",
     "aw_quota_manager_bridge_impl.h",
     "aw_resource.cc",
-    "aw_resource.h",
     "aw_settings.cc",
     "aw_settings.h",
     "aw_web_contents_delegate.cc",
     "aw_web_contents_delegate.h",
     "aw_web_contents_view_delegate.cc",
     "aw_web_contents_view_delegate.h",
     "aw_web_preferences_populater_impl.cc",
     "aw_web_preferences_populater_impl.h",
     "aw_web_resource_response_impl.cc",
     "aw_web_resource_response_impl.h",
@@ skipping 68 matching lines @@
 generate_jar_jni("cancellation_signal_android_jar_jni_headers") {
   classes = [ "android/os/CancellationSignal.class" ]
   jni_package = "android_webview"
 }
 
 java_cpp_enum("aw_permission_request_resource") {
   sources = [
     "permission/aw_permission_request.h",
   ]
 }