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diff --git a/Source/JavaScriptCore/dfg/DFGAnalysis.h b/Source/JavaScriptCore/dfg/DFGAnalysis.h
deleted file mode 100644
index 1a49a8f51..000000000
--- a/Source/JavaScriptCore/dfg/DFGAnalysis.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * Copyright (C) 2013 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. 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.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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 DFGAnalysis_h
-#define DFGAnalysis_h
-
-#include <wtf/Platform.h>
-
-#if ENABLE(DFG_JIT)
-
-namespace JSC { namespace DFG {
-
-class Graph;
-
-// Use this as a mixin for DFG analyses. The analysis itself implements a public
-// compute(Graph&) method. Clients call computeIfNecessary() when they want
-// results.
-
-template<typename T>
-class Analysis {
-public:
-    Analysis()
-        : m_valid(false)
-    {
-    }
-    
-    void invalidate()
-    {
-        m_valid = false;
-    }
-    
-    void computeIfNecessary(Graph& graph)
-    {
-        if (m_valid)
-            return;
-        // Set to true early, since the analysis may choose to call its own methods in
-        // compute() and it may want to ASSERT() validity in those methods.
-        m_valid = true;
-        static_cast<T*>(this)->compute(graph);
-    }
-    
-    bool isValid() const { return m_valid; }
-
-private:
-    bool m_valid;
-};
-
-} } // namespace JSC::DFG
-
-#endif // ENABLE(DFG_JIT)
-
-#endif // DFGAnalysis_h
-