diff --git a/Control/DataModel/DataModel/Arena.h b/Control/DataModel/DataModel/Arena.h
deleted file mode 100755
index 21366f80a7f09cbebd53bbb20fdaa6c43f59a72a..0000000000000000000000000000000000000000
--- a/Control/DataModel/DataModel/Arena.h
+++ /dev/null
@@ -1,17 +0,0 @@
-// This file's extension implies that it's C, but it's really -*- C++ -*-.
-
-/*
-  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
-*/
-
-// $Id: Arena.h 559676 2013-08-28 18:44:37Z ssnyder $
-// Moved to AthAllocators.
-
-#ifndef DATAMODEL_ARENA_H
-#define DATAMODEL_ARENA_H
-
-
-#include "AthAllocators/Arena.h"
-
-
-#endif // not DATAMODEL_ARENA_H
diff --git a/Control/DataModel/DataModel/ClassName.h b/Control/DataModel/DataModel/ClassName.h
deleted file mode 100755
index 5171f245ded09e8cae15b77c75d1837dcd1e6695..0000000000000000000000000000000000000000
--- a/Control/DataModel/DataModel/ClassName.h
+++ /dev/null
@@ -1,23 +0,0 @@
-// This file's extension implies that it's C, but it's really -*- C++ -*-.
-
-/*
-  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
-*/
-
-// $Id: ClassName.h 559821 2013-08-29 20:51:26Z ssnyder $
-
-/**
- * @file  DataModel/ClassName.h
- * @author scott snyder
- * @date Jul 2005
- * @brief An interface for getting the name of a class as a string.
- */
-
-
-#ifndef DATAMODEL_CLASSNAME_H
-#define DATAMODEL_CLASSNAME_H
-
-// moved to SGTools for dependency issues
-#include "SGTools/ClassName.h"
-
-#endif // not DATAMODEL_CLASSNAME_H
diff --git a/Control/DataModel/DataModel/OwnershipPolicy.h b/Control/DataModel/DataModel/OwnershipPolicy.h
deleted file mode 100755
index 2edfde9983694111cce657f3aad627099f46cc0b..0000000000000000000000000000000000000000
--- a/Control/DataModel/DataModel/OwnershipPolicy.h
+++ /dev/null
@@ -1,10 +0,0 @@
-/*
-  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
-*/
-
-#ifndef DATAMODEL_OWNERSHIPPOLICY_H
-# define DATAMODEL_OWNERSHIPPOLICY_H
-
-#include "AthContainers/OwnershipPolicy.h"
-
-#endif // DATAMODEL_OWNERSHIPPOLICY_H
diff --git a/Control/DataModel/DataModel/tools/ArenaPoolSTLAllocator.h b/Control/DataModel/DataModel/tools/ArenaPoolSTLAllocator.h
deleted file mode 100644
index e4b467d3fc8630454fd588bd2aa1f2c6c05c1c68..0000000000000000000000000000000000000000
--- a/Control/DataModel/DataModel/tools/ArenaPoolSTLAllocator.h
+++ /dev/null
@@ -1,17 +0,0 @@
-// This file's extension implies that it's C, but it's really -*- C++ -*-.
-
-/*
-  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
-*/
-
-// $Id: ArenaPoolSTLAllocator.h,v 1.2 2008-08-26 02:12:26 ssnyder Exp $
-// Moved to AthAllocators
-
-#ifndef DATAMODEL_ARENAPOOLSTLALLOCATOR
-#define DATAMODEL_ARENAPOOLSTLALLOCATOR
-
-
-#include "AthAllocators/ArenaPoolSTLAllocator.h"
-
-
-#endif // DATAMODEL_ARENAPOOLSTLALLOCATOR
diff --git a/Control/DataModel/DataModel/tools/DVLInfo.h b/Control/DataModel/DataModel/tools/DVLInfo.h
deleted file mode 100644
index 7f1c3d3c77af7cccf179ddafce93c658cee00223..0000000000000000000000000000000000000000
--- a/Control/DataModel/DataModel/tools/DVLInfo.h
+++ /dev/null
@@ -1,17 +0,0 @@
-// This file's extension implies that it's C, but it's really -*- C++ -*-.
-
-/*
-  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
-*/
-
-// $Id: DVLInfo.h,v 1.2 2008-06-17 00:44:17 ssnyder Exp $
-// Moved to AthContainers.
-
-#ifndef DATAMODEL_DVLINFO_H
-#define DATAMODEL_DVLINFO_H
-
-
-#include "AthContainers/tools/DVLInfo.h"
-
-
-#endif // not DATAMODEL_DVLINFO_H
diff --git a/Control/DataModel/DataModel/unordered_map.h b/Control/DataModel/DataModel/unordered_map.h
deleted file mode 100755
index 6110bba8ba40b528707c57bb8d98311014a04a9d..0000000000000000000000000000000000000000
--- a/Control/DataModel/DataModel/unordered_map.h
+++ /dev/null
@@ -1,26 +0,0 @@
-// This file's extension implies that it's C, but it's really -*- C++ -*-.
-
-/*
-  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
-*/
-
-// $Id: unordered_map.h,v 1.4 2008-01-03 21:20:51 ssnyder Exp $
-/**
- * @file DataModel/unordered_map.h
- * @author scott snyder <snyder@bnl.gov>, copied from gcc4.
- * @date Apr, 2007
- * @brief This is the TR1 unordered_set implementation from gcc4,
- *        adapted to build in Atlas.  Once the TR1 library is available
- *        on all our platforms, we can switch to using the system-supplied
- *        version instead.
- *
- * This has been moved to CxxUtils, leaving this as a forwarding header
- * for now.
- */
-
-#ifndef DATAMODEL_UNORDERED_MAP_H
-#define DATAMODEL_UNORDERED_MAP_H
-
-#include "CxxUtils/unordered_map.h"
-
-#endif /* GNU_LIBSTDCXX_TR1_UNORDERED_MAP_ */