chromeos: Remove the last IME methods from ash::SystemTrayDelegate

ash/test/test_system_tray_delegate.h

Index: ash/test/test_system_tray_delegate.h
diff --git a/ash/test/test_system_tray_delegate.h b/ash/test/test_system_tray_delegate.h
index 86e17f4a7517d5c4463fe0a3d6b8ca4682484467..9c2005b3046d7050efedf5b159f9c36d5a0dedbf 100644
--- a/ash/test/test_system_tray_delegate.h
+++ b/ash/test/test_system_tray_delegate.h
@@ -5,7 +5,6 @@
 #ifndef ASH_TEST_TEST_SYSTEM_TRAY_DELEGATE_H_
 #define ASH_TEST_TEST_SYSTEM_TRAY_DELEGATE_H_
 
-#include "ash/system/tray/ime_info.h"
 #include "ash/system/tray/system_tray_delegate.h"
 #include "base/macros.h"
 #include "base/time/time.h"
@@ -25,23 +24,13 @@ class TestSystemTrayDelegate : public SystemTrayDelegate {
   // Clears the session length limit.
   void ClearSessionLengthLimit();
 
-  // Sets the IME info.
-  void SetCurrentIME(const IMEInfo& info);
-
-  // Sets the list of available IMEs.
-  void SetAvailableIMEList(const IMEInfoList& list);
-
   // SystemTrayDelegate:
   bool GetSessionStartTime(base::TimeTicks* session_start_time) override;
   bool GetSessionLengthLimit(base::TimeDelta* session_length_limit) override;
-  void GetCurrentIME(IMEInfo* info) override;
-  void GetAvailableIMEList(IMEInfoList* list) override;
 
  private:
   base::TimeDelta session_length_limit_;
   bool session_length_limit_set_ = false;
-  IMEInfo current_ime_;
-  IMEInfoList ime_list_;
 
   DISALLOW_COPY_AND_ASSIGN(TestSystemTrayDelegate);
 };