MdeModulePkg/UefiBootManagerLib: Expose *GetLoadOptionBuffer() API

Expose EfiBootManagerGetLoadOptionBuffer() API.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>

MdeModulePkg/Library/UefiBootManagerLib/InternalBm.h

@@ -310,25 +310,6 @@ BmSetVariableAndReportStatusCodeOnError (
   IN VOID       *Data
   );
 
-/**
-  Get the load option by its device path.
-
-  @param FilePath  The device path pointing to a load option.
-                   It could be a short-form device path.
-  @param FullPath  Return the full device path of the load option after
-                   short-form device path expanding.
-                   Caller is responsible to free it.
-  @param FileSize  Return the load option size.
-
-  @return The load option buffer. Caller is responsible to free the memory.
-**/
-VOID *
-BmGetLoadOptionBuffer (
-  IN  EFI_DEVICE_PATH_PROTOCOL          *FilePath,
-  OUT EFI_DEVICE_PATH_PROTOCOL          **FullPath,
-  OUT UINTN                             *FileSize
-  );
-
 /**
   Return whether the PE header of the load option is valid or not.