Removes ImeController::UsingFrenchInputMethod and thus ImeControlDelegate::RemapAccelerator.

ash/accelerators/accelerator_controller_unittest.cc

Index: ash/accelerators/accelerator_controller_unittest.cc
diff --git a/ash/accelerators/accelerator_controller_unittest.cc b/ash/accelerators/accelerator_controller_unittest.cc
index b9304b6b1f530ad5a580ff8c5070dc658b923c20..5967a04113ccaf79941aaa1b2c04fa3edcdd4efe 100644
--- a/ash/accelerators/accelerator_controller_unittest.cc
+++ b/ash/accelerators/accelerator_controller_unittest.cc
@@ -151,10 +151,6 @@ class DummyImeControlDelegate : public ImeControlDelegate {
   int handle_switch_ime_count() const {
     return handle_switch_ime_count_;
   }
-  ui::Accelerator RemapAccelerator(
-      const ui::Accelerator& accelerator) override {
-    return ui::Accelerator(accelerator);
-  }
 
  private:
   int handle_next_ime_count_;