Remove IETF RFC license info (#80506)

guidfromname.cpp contains a reference to an IETF RFC draft. This needs to be clarified for downstream FOSS licensing scans by removing the draft reference.

This PR corrects the IETF RFC reference and retains the final published RFC references.

Resolves #79231

src/coreclr/utilcode/guidfromname.cpp

@@ -43,31 +43,6 @@ Foundation, Inc., Hewlett-Packard Company, Microsoft, nor Digital Equipment
 Corporation makes any representations about the suitability of
 this software for any purpose.
 
-
-Copyright(C) The Internet Society 1997. All Rights Reserved.
-
-This document and translations of it may be copied and furnished to others,
-and derivative works that comment on or otherwise explain it or assist in
-its implementation may be prepared, copied, published and distributed, in
-whole or in part, without restriction of any kind, provided that the above
-copyright notice and this paragraph are included on all such copies and
-derivative works.However, this document itself may not be modified in any
-way, such as by removing the copyright notice or references to the Internet
-Society or other Internet organizations, except as needed for the purpose of
-developing Internet standards in which case the procedures for copyrights
-defined in the Internet Standards process must be followed, or as required
-to translate it into languages other than English.
-
-The limited permissions granted above are perpetual and will not be revoked
-by the Internet Society or its successors or assigns.
-
-This document and the information contained herein is provided on an "AS IS"
-basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING TASK FORCE
-DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
-ANY WARRANTY THAT THE USE OF THE INFORMATION HEREIN WILL NOT INFRINGE ANY
-RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A
-PARTICULAR PURPOSE.
-
 */
 
 #include "stdafx.h"