views: Remove unused GetCurrentTargetForAccelerator from FocusManager.

ash/accelerators/accelerator_controller.cc

Index: ash/accelerators/accelerator_controller.cc
diff --git a/ash/accelerators/accelerator_controller.cc b/ash/accelerators/accelerator_controller.cc
index 20882abecf3eaa2c0f58ecb86df7d5d03b6002dd..9ce54c7a5a461dc7cf8186296d86c5cdb2a3cd30 100644
--- a/ash/accelerators/accelerator_controller.cc
+++ b/ash/accelerators/accelerator_controller.cc
@@ -781,14 +781,12 @@ void AcceleratorController::UnregisterAll(ui::AcceleratorTarget* target) {
 }
 
 bool AcceleratorController::Process(const ui::Accelerator& accelerator) {
-  if (ime_control_delegate_)
-    return accelerator_manager_->Process(accelerator);
   return accelerator_manager_->Process(accelerator);
 }
 
 bool AcceleratorController::IsRegistered(
     const ui::Accelerator& accelerator) const {
-  return accelerator_manager_->GetCurrentTarget(accelerator) != NULL;
+  return accelerator_manager_->IsRegistered(accelerator);
 }
 
 bool AcceleratorController::IsPreferred(