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diff --git a/MdePkg/Include/Library/PalCallLib.h b/MdePkg/Include/Library/PalCallLib.h
deleted file mode 100644
index 8deb55a5bc..0000000000
--- a/MdePkg/Include/Library/PalCallLib.h
+++ /dev/null
@@ -1,61 +0,0 @@
-/** @file
-  PAL Call Services
-
-  Copyright (c) 2006, Intel Corporation
-  All rights reserved. This program and the accompanying materials
-  are licensed and made available under the terms and conditions of the BSD License
-  which accompanies this distribution.  The full text of the license may be found at
-  http://opensource.org/licenses/bsd-license.php
-
-  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-  Module Name:  PalCallLib.h
-
-**/
-
-#ifndef __PAL_CALL_LIB_H__
-#define __PAL_CALL_LIB_H__
-
-
-#include <Base.h>
-//
-// PAL_CALL_RETURN
-//
-
-/**
-  Makes a PAL procedure call.
-
-  This is a wrapper function to make a PAL procedure call.  Based on the Index value,
-  this API will make static or stacked PAL call. Architected procedures may be designated
-  as required or optional.  If a PAL procedure is specified as optional, a unique return
-  code of 0xFFFFFFFFFFFFFFFF is returned in the Status field of the PAL_CALL_RETURN structure.
-  This indicates that the procedure is not present in this PAL implementation.  It is the
-  caller��s responsibility to check for this return code after calling any optional PAL
-  procedure. No parameter checking is performed on the 4 input parameters, but there are
-  some common rules that the caller should follow when making a PAL call.  Any address
-  passed to PAL as buffers for return parameters must be 8-byte aligned.  Unaligned addresses
-  may cause undefined results.  For those parameters defined as reserved or some fields
-  defined as reserved must be zero filled or the invalid argument return value may be
-  returned or undefined result may occur during the execution of the procedure.
-  This function is only available on IPF.
-
-  @param Index - The PAL procedure Index number.
-  @param Arg2  - The 2nd parameter for PAL procedure calls.
-  @param Arg3  - The 3rd parameter for PAL procedure calls.
-  @param Arg4  - The 4th parameter for PAL procedure calls.
-
-  @return structure returned from the PAL Call procedure, including the status and return value.
-
-**/
-PAL_CALL_RETURN
-EFIAPI
-PalCall (
-  IN UINT64                  Index,
-  IN UINT64                  Arg2,
-  IN UINT64                  Arg3,
-  IN UINT64                  Arg4
-  );
-
-#endif
-