sync: Remove ClearUserData command.

sync/test/engine/mock_connection_manager.h

 // Copyright (c) 2012 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.
 //
 // Mock ServerConnectionManager class for use in client unit tests.
 
 #ifndef SYNC_TEST_ENGINE_MOCK_CONNECTION_MANAGER_H_
 #define SYNC_TEST_ENGINE_MOCK_CONNECTION_MANAGER_H_
 #pragma once
 
@@ skipping 103 matching lines @@
   void SetChangesRemaining(int64 count);
 
   // Add a new batch of updates after the current one.  Allows multiple
   // GetUpdates responses to be buffered up, since the syncer may
   // issue multiple requests during a sync cycle.
   void NextUpdateBatch();
 
   void FailNextPostBufferToPathCall() { countdown_to_postbuffer_fail_ = 1; }
   void FailNthPostBufferToPathCall(int n) { countdown_to_postbuffer_fail_ = n; }
 
-  void SetClearUserDataResponseStatus(sync_pb::SyncEnums::ErrorType errortype);
-
   void FailNonPeriodicGetUpdates() { fail_non_periodic_get_updates_ = true; }
 
   // Simple inspectors.
   bool client_stuck() const { return client_stuck_; }
 
   sync_pb::ClientCommand* GetNextClientCommand();
 
   const std::vector<syncable::Id>& committed_ids() const {
     return committed_ids_;
   }
@@ skipping 208 matching lines @@
   int num_get_updates_requests_;
 
   std::string next_token_;
 
   sync_pb::ClientToServerMessage last_request_;
 
   DISALLOW_COPY_AND_ASSIGN(MockConnectionManager);
 };
 
 #endif  // SYNC_TEST_ENGINE_MOCK_CONNECTION_MANAGER_H_