Remove unneeded JNI registrations.

base/android/trace_event_binding.cc

Index: base/android/trace_event_binding.cc
diff --git a/base/android/trace_event_binding.cc b/base/android/trace_event_binding.cc
index 4e7bdbb681788b9dffcd0b0ce3347f8bb728f575..7051c7e353a0263f01427c871c27a9a5eefbfb58 100644
--- a/base/android/trace_event_binding.cc
+++ b/base/android/trace_event_binding.cc
@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "base/android/trace_event_binding.h"
-
 #include <jni.h>
 
 #include <set>
@@ -133,9 +131,5 @@ static void FinishAsync(JNIEnv* env, jclass clazz,
   }
 }
 
-bool RegisterTraceEvent(JNIEnv* env) {
-  return RegisterNativesImpl(env);
-}
-
 }  // namespace android
 }  // namespace base