base: Remove unneeded RegisterNatives() calls on Android

base/android/event_log.cc

 // Copyright 2013 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.
 
 #include "base/android/event_log.h"
 #include "jni/EventLog_jni.h"
 
 namespace base {
 namespace android {
 
 void EventLogWriteInt(int tag, int value) {
   Java_EventLog_writeEvent(AttachCurrentThread(), tag, value);
 }
 
-bool RegisterEventLog(JNIEnv* env) {
-  return RegisterNativesImpl(env);
-}
-
 }  // namespace android
 }  // namespace base