delete unused function longest_path_length

[Ian Lance Taylor]

"Manuel López-Ibáñez" <lopezibanez@gmail.com> writes:

> :ADDPATCH middle-end:
> 
> While fixing PR4076, I found another unused function.
> 
> Bootstrapped and regression tested with --enable-languages=all on
> i686-pc-linux-gnu.
> 
> Goodbye to it?
> 
> 2007-01-31  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
> 
>  * genautomata.c (longest_path_length): Delete unused function.

I'm in favor of deleting this, but please also delete
UNDEFINED_LONGEST_PATH_LENGTH and the longest_path_length field of
struct state.  I'll approve that patch assume it passes bootstrap and
testing.

Please give Vlad (CC'ed) a day or two to comment, maybe he had
something in mind for these.

Thanks.

:REVIEWMAIL:

Ian