[PATCH]: Remove levels member from loops structure

[Zack Weinberg]

Daniel Berlin <dberlin@dberlin.org> writes:

> As previously discussed, the levels member of the loops structure (*NOT*
> the level member of the loop structure), is unused and isn't kept up to
> date by loop removal/adding functions.  Thus, it seems it's best to just
> make it go away. We can always add it back if somebody finds a use for
> it later.
>
> Bootstrapped and regtested on i686-pc-linux-gnu.
>
> Okay for mainline, or should i wait for 4.1?

I think this can go in now.  If there's nothing left that uses the
return value of flow_loops_level_compute, maybe you could get rid of
that too?

zw