trivial diff: char.m: remove obsolete comment

[Fergus Henderson]

library/char.m:
	Delete an obsolete comment about not supporting 8-bit characters.

Index: char.m
===================================================================
RCS file: /home/mercury1/repository/mercury/library/char.m,v
retrieving revision 1.24
diff -u -u -r1.24 char.m
--- char.m	1998/01/23 12:33:13	1.24
+++ char.m	1998/05/11 20:05:45
@@ -14,9 +14,6 @@
 % Originally we used `character' rather than `char' for the type name
 % because `char' was used by NU-Prolog to mean something different.
 % But now we use `char' and the use of `character' is discouraged.
-%
-% NU-Prolog atoms can only include 7-bit ASCII chars, so the current
-% implementation does not support 8-bit characters.
 
 %-----------------------------------------------------------------------------%
 %-----------------------------------------------------------------------------%
-- 
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WWW: <http://www.cs.mu.oz.au/~fjh>  |  of excellence is a lethal habit"
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