update AUTHORS

AUTHORS

@@ -3,12 +3,8 @@ Kamila Szewczyk <[email protected], [email protected]>
 
 Acknowledgements:
 - Marshall Lochbaum (improved syndrome calculation).
-- Peter Cawley (developed the mixed-PCMULQDQ and SSE4.2 CRC32C
-  acceleration technique used by xpar). The code in xpar is
-  based on the fast-crc32 project of Peter's, available under
-  the MIT license.
 - Phil Karn (KA9Q) originally implemented the error+erasure
-  correction codec used by xpar.
+  correction codec used by xpar (GPLv2).
 
 Also contains verbatim code written by:
 - Rich Felker (getopt_long shim, Expat/MIT license).