Clean up BaseIoLibIntrinsic according to review comments.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5876 6f19259b-4bc3-4df7-8a09-765794883524

MdePkg/Library/BaseIoLibIntrinsic/IoHighLevel.c

@@ -4,7 +4,7 @@
   All assertions for bit field operations are handled bit field functions in the
   Base Library.
 
-  Copyright (c) 2006, Intel Corporation<BR>
+  Copyright (c) 2006 - 2008, Intel Corporation<BR>
   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
@@ -21,9 +21,6 @@
 
 **/
 
-//
-// Include common header file for this module.
-//
 #include "BaseIoLibIntrinsicInternal.h"
 
 /**