Get rid of unused callbacks from ui::InputMethodObserver

ui/base/ime/input_method_linux_x11.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 "ui/base/ime/input_method_linux_x11.h"
 
 #include "ui/base/ime/linux/linux_input_method_context_factory.h"
 #include "ui/base/ime/text_input_client.h"
 #include "ui/events/event.h"
 #include "ui/events/event_utils.h"
@@ skipping 86 matching lines @@
 
 void InputMethodLinuxX11::CancelComposition(const TextInputClient* client) {
   if (!IsTextInputClientFocused(client))
     return;
 
   input_method_context_->Reset();
   input_method_context_->OnTextInputTypeChanged(client->GetTextInputType());
 }
 
 void InputMethodLinuxX11::OnInputLocaleChanged() {
-  InputMethodBase::OnInputLocaleChanged();
 }
 
 std::string InputMethodLinuxX11::GetInputLocale() {
   return "";
 }
 
 base::i18n::TextDirection InputMethodLinuxX11::GetInputTextDirection() {
   return input_method_context_->GetInputTextDirection();
 }
 
@@ skipping 57 matching lines @@
     if (ch) {
       GetTextInputClient()->InsertChar(ch, event.flags());
       return true;
     }
   }
 
   return false;
 }
 
 }  // namespace ui