Remove parameter names from libiberty.h

[Ian Lance Taylor]

"Dave Korn" <dave.korn@artimi.com> writes:

>   My two cents is that it's asking for trouble to #define an all-lower case
> word, particularly an extremely common one such as 'mode'.  I had a quick
> grep but couldn't figure out where it's coming from.  I guess that sort of
> thing is vaguely-ok-if-innately-fragile if it's being defined by the
> m88k-dis source file, but if there's a public header in either binutils or
> libiberty that's doing it, I'd think it ought to change.

It was coming from include/opcode/m88k.h, and it's already been fixed
there by Paul Brook.

Still, I don't think we should use parameter names for well understood
functions.  There is no ideal policy here, but omitting unnecessary
parameter names seems to me to be wise regardless.

Ian