diff --git a/MdeModulePkg/Core/Dxe/DxeMain.h b/MdeModulePkg/Core/Dxe/DxeMain.h
index 13b0ee3e3d..359c0258eb 100644
--- a/MdeModulePkg/Core/Dxe/DxeMain.h
+++ b/MdeModulePkg/Core/Dxe/DxeMain.h
@@ -1882,29 +1882,6 @@ CoreTrust (
   );
 
 
-/**
-  Helper function called as part of the code needed
-  to allocate the proper sized buffer for various
-  EFI interfaces.
-
-  @param  Status                 Current status
-  @param  Buffer                 Current allocated buffer, or NULL
-  @param  BufferSize             Current buffer size needed
-
-  @retval TRUE                   if the buffer was reallocated and the caller
-                                 should try the API again.
-  @retval FALSE                  buffer could not be allocated and the caller
-                                 should not try the API again.
-
-**/
-BOOLEAN
-CoreGrowBuffer (
-  IN OUT EFI_STATUS   *Status,
-  IN OUT VOID         **Buffer,
-  IN UINTN            BufferSize
-  );
-
-
 /**
   This routine is the driver initialization entry point.  It initializes the
   libraries, and registers two notification functions.  These notification