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diff --git a/OptionRomPkg/CirrusLogic5430Dxe/CirrusLogic5430I2c.h b/OptionRomPkg/CirrusLogic5430Dxe/CirrusLogic5430I2c.h
deleted file mode 100644
index 505575cc99..0000000000
--- a/OptionRomPkg/CirrusLogic5430Dxe/CirrusLogic5430I2c.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/** @file
-  I2c Bus byte read/write functions.
-
-  Copyright (c) 2008 - 2009, Intel Corporation. All rights reserved.<BR>
-  SPDX-License-Identifier: BSD-2-Clause-Patent
-
-**/
-
-#ifndef _CIRRUS_LOGIC_I2C_H_
-#define _CIRRUS_LOGIC_I2C_H_
-
-#include <Protocol/PciIo.h>
-
-/**
-  Read one byte data on I2C Bus.
-
-  Read one byte data from the slave device connectet to I2C Bus.
-  If Data is NULL, then ASSERT().
-
-  @param  PciIo              The pointer to PCI_IO_PROTOCOL.
-  @param  DeviceAddress      Slave device's address.
-  @param  RegisterAddress    The register address on slave device.
-  @param  Data               The pointer to returned data if EFI_SUCCESS returned.
-
-  @retval EFI_DEVICE_ERROR
-  @retval EFI_SUCCESS
-
-**/
-EFI_STATUS
-EFIAPI
-I2cReadByte (
-  EFI_PCI_IO_PROTOCOL    *PciIo,
-  UINT8                  DeviceAddress,
-  UINT8                  RegisterAddress,
-  UINT8                  *Data
-  );
-
-/**
-  Write one byte data onto I2C Bus.
-
-  Write one byte data to the slave device connectet to I2C Bus.
-  If Data is NULL, then ASSERT().
-
-  @param  PciIo              The pointer to PCI_IO_PROTOCOL.
-  @param  DeviceAddress      Slave device's address.
-  @param  RegisterAddress    The register address on slave device.
-  @param  Data               The pointer to write data.
-
-  @retval EFI_DEVICE_ERROR
-  @retval EFI_SUCCESS
-
-**/
-EFI_STATUS
-EFIAPI
-I2cWriteByte (
-  EFI_PCI_IO_PROTOCOL    *PciIo,
-  UINT8                  DeviceAddress,
-  UINT8                  RegisterAddress,
-  UINT8                  *Data
-  );
-
-#endif