ui: Remove unneeded RegisterNatives() call on Android

ui/base/device_form_factor_android.cc

Index: ui/base/device_form_factor_android.cc
diff --git a/ui/base/device_form_factor_android.cc b/ui/base/device_form_factor_android.cc
index 9cc21ba60471882302815fc3ffb52c7ed1562306..3ecd0d9168e7bd37c7008ee9980f57dcb419b141 100644
--- a/ui/base/device_form_factor_android.cc
+++ b/ui/base/device_form_factor_android.cc
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "ui/base/device_form_factor_android.h"
+#include "ui/base/device_form_factor.h"
 
 #include "base/android/context_utils.h"
 #include "base/android/jni_android.h"
@@ -17,8 +17,4 @@ DeviceFormFactor GetDeviceFormFactor() {
   return is_tablet ? DEVICE_FORM_FACTOR_TABLET : DEVICE_FORM_FACTOR_PHONE;
 }
 
-bool RegisterDeviceFormFactorAndroid(JNIEnv* env) {
-  return RegisterNativesImpl(env);
-}
-
 }  // namespace ui