Make installworld failure

[David Garcia Watkins]

> > I tried the RELENG_4_8 as a workaround with the exact same error as
> > before.
> >
> > vm/vnode_pager.h -> vm/vnode_pager.ph
> > *** Error code 1
> >
> > Stop in /usr/src/gnu/usr.bin/perl/utils/h2ph.
> > *** Error code 1
> >
> > and a bunch of other error code 1's back up the directory tree.

I remember a stale symlink somewhere in /usr/include was preventing me 
from making world once.

After deleting it, everything worked again.

HIH,
David