Drop a VAX/Tahoe reference (the VAX case wasn't true with the current compiler

either).

lib/libc/stdio/printf.3

@@ -1,4 +1,4 @@
-.\"	$NetBSD: printf.3,v 1.20 2001/09/16 02:17:16 wiz Exp $
+.\"	$NetBSD: printf.3,v 1.21 2001/10/17 13:27:15 kleink Exp $
 .\"
 .\" Copyright (c) 1990, 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -448,12 +448,7 @@ or
 .Cm G
 conversion corresponds to a
 .Em long double
-argument (but note that long double values are not currently supported
-by the
-.Tn VAX
-and
-.Tn Tahoe
-compilers).
+argument.
 .It
 A character that specifies the type of conversion to be applied.
 .El