Remove unneeded JNI registrations.

base/android/library_loader/library_loader_hooks.cc

 // 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.
 
 #include "base/android/library_loader/library_loader_hooks.h"
 
 #include "base/at_exit.h"
 #include "base/metrics/histogram.h"
 #include "jni/LibraryLoader_jni.h"
 
@@ skipping 31 matching lines @@
                         is_low_memory_device);
 }
 
 void LibraryLoaderExitHook() {
   if (g_at_exit_manager) {
     delete g_at_exit_manager;
     g_at_exit_manager = NULL;
   }
 }
 
-bool RegisterLibraryLoaderEntryHook(JNIEnv* env) {
-  // We need the AtExitManager to be created at the very beginning.
-  g_at_exit_manager = new base::AtExitManager();
-
-  return RegisterNativesImpl(env);
-}
-
 void SetVersionNumber(const char* version_number) {
   g_library_version_number = strdup(version_number);
 }
 
 jstring GetVersionNumber(JNIEnv* env, jclass clazz) {
   return env->NewStringUTF(g_library_version_number);
 }
 
 static void RecordNativeLibraryHack(JNIEnv*, jclass, jboolean usedHack) {
   UMA_HISTOGRAM_BOOLEAN("LibraryLoader.NativeLibraryHack", usedHack);
 }
 
 }  // namespace android
 }  // namespace base