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diff --git a/src/mem/ruby/system/SparseMemory.hh b/src/mem/ruby/system/SparseMemory.hh
deleted file mode 100644
index 65e0ae8ad..000000000
--- a/src/mem/ruby/system/SparseMemory.hh
+++ /dev/null
@@ -1,98 +0,0 @@
-/*
- * Copyright (c) 2009 Advanced Micro Devices, Inc.
- * Copyright (c) 2012 Mark D. Hill and David A. Wood
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met: redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer;
- * redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution;
- * neither the name of the copyright holders nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef __MEM_RUBY_SYSTEM_SPARSEMEMORY_HH__
-#define __MEM_RUBY_SYSTEM_SPARSEMEMORY_HH__
-
-#include <iostream>
-#include <string>
-
-#include "base/hashmap.hh"
-#include "base/statistics.hh"
-#include "mem/ruby/common/Address.hh"
-#include "mem/ruby/recorder/CacheRecorder.hh"
-#include "mem/ruby/slicc_interface/AbstractEntry.hh"
-
-typedef void* SparseMemEntry;
-typedef m5::hash_map<Address, SparseMemEntry> SparseMapType;
-
-struct CurNextInfo
-{
-    SparseMapType* curTable;
-    int level;
-    int highBit;
-    int lowBit;
-};
-
-class SparseMemory
-{
-  public:
-    SparseMemory(int number_of_levels);
-    ~SparseMemory();
-
-    bool exist(const Address& address) const;
-    void add(const Address& address, AbstractEntry*);
-    void remove(const Address& address);
-
-    /*!
-     * Function for recording the contents of memory. This function walks
-     * through all the levels of the sparse memory in a breadth first
-     * fashion. This might need more memory than a depth first approach.
-     * But breadth first seems easier to me than a depth first approach.
-     */
-    void recordBlocks(int cntrl_id, CacheRecorder *) const;
-
-    AbstractEntry* lookup(const Address& address);
-    void regStats(const std::string &name);
-
-  private:
-    // Private copy constructor and assignment operator
-    SparseMemory(const SparseMemory& obj);
-    SparseMemory& operator=(const SparseMemory& obj);
-
-    // Used by destructor to recursively remove all tables
-    void recursivelyRemoveTables(SparseMapType* currentTable, int level);
-
-    // recursive search for address and remove associated entries
-    int recursivelyRemoveLevels(const Address& address, CurNextInfo& curInfo);
-
-    // Data Members (m_prefix)
-    SparseMapType* m_map_head;
-
-    int m_total_number_of_bits;
-    int m_number_of_levels;
-    int* m_number_of_bits_per_level;
-
-    Stats::Scalar m_total_adds;
-    Stats::Vector m_adds_per_level;
-    Stats::Scalar m_total_removes;
-    Stats::Vector m_removes_per_level;
-};
-
-#endif // __MEM_RUBY_SYSTEM_SPARSEMEMORY_HH__