Remove code that has been disabled since 1999. From Michael W. Bombardieri who
authoranton <anton@openbsd.org>
Sat, 20 Jan 2018 15:32:20 +0000 (15:32 +0000)
committeranton <anton@openbsd.org>
Sat, 20 Jan 2018 15:32:20 +0000 (15:32 +0000)
commit81a95e3f81cc7fb05308aec6e97fbdfac84dafc3
treef734a3ca07f9dd66ec503f4dc86b0b9189b0c7fe
parent380f0cc2d2a16b8f1b4ee02d2ab61fef80f32a92
Remove code that has been disabled since 1999. From Michael W. Bombardieri who
also took the time to provide an excellent explanation on why the code isn't
useful on tech@.

ok jca@
bin/ksh/tree.c