Remove individual user copyright because the code is contributed to

PGDG:

> Yes. In fact the copyright belongs to credativ GmbH the company that
> paid Carsten for his work. As you may or may not know I'm the CEO of
> that company and can assure you that his work was contributed to the
> PostgreSQL project.

src/interfaces/ecpg/compatlib/informix.c

-/* $PostgreSQL: pgsql/src/interfaces/ecpg/compatlib/informix.c,v 1.44 2006/06/23 14:50:01 meskes Exp $ */
+/* $PostgreSQL: pgsql/src/interfaces/ecpg/compatlib/informix.c,v 1.45 2006/06/25 01:45:32 momjian Exp $ */
 
 #include <stdlib.h>
 #include <string.h>
@@ -666,14 +666,10 @@ intoasc(interval * i, char *str)
 	return 0;
 }
 
-/***************************************************************************
-						  rfmt.c  -  description
-							 -------------------
-	begin				 : Wed Apr 2 2003
-	copyright			 : (C) 2003 by Carsten Wolff
-	email				 : carsten.wolff@credativ.de
-	Contributed under the PostgreSQL License by credativ GmbH
- ***************************************************************************/
+/*
+ *	rfmt.c  -  description
+ *	by Carsten Wolff <carsten.wolff@credativ.de>, Wed Apr 2 2003
+ */
 
 static struct
 {