tree: dropped unmaintained port

tree/.footprint

@@ -1,7 +0,0 @@
-drwxr-xr-x	root/root	usr/
-drwxr-xr-x	root/root	usr/bin/
--rwxr-xr-x	root/root	usr/bin/tree
-drwxr-xr-x	root/root	usr/share/
-drwxr-xr-x	root/root	usr/share/man/
-drwxr-xr-x	root/root	usr/share/man/man1/
--rw-r--r--	root/root	usr/share/man/man1/tree.1.gz

tree/.signature

@@ -1,5 +0,0 @@
-untrusted comment: verify with /etc/ports/contrib.pub
-RWSagIOpLGJF3xqqs9Qmev4JZ+HD6s5TDdRpJsRGeBW3Bf2gVUMn+fSB1J7EBzz9CaXIWAcA+yBXv7P0z+XOoyiJVvQU3/EP3gI=
-SHA256 (Pkgfile) = ecedd3ad8c2d5c540341970da2e70ceec998d75a56b18195796704e273ba2b39
-SHA256 (.footprint) = be1450bbd70087ebcfedf3d6ff0b9d3d8556db51634673f3e6f84c31bfcd5a72
-SHA256 (tree-1.8.0.tgz) = 715d5d4b434321ce74706d0dd067505bb60c5ea83b5f0b3655dae40aa6f9b7c2

tree/Pkgfile

@@ -1,20 +0,0 @@
-# Description: Display directory tree
-# URL: http://mama.indstate.edu/users/ice/tree/
-# Maintainer: Jan-Michael Franz, jmf at mesecons dot net
-# Packager: Giorgio Lando, patroclo7 at gmail dot com
-# Depends on:
-
-name=tree
-version=1.8.0
-release=1
-source=(ftp://mama.indstate.edu/linux/$name/$name-$version.tgz)
-
-build () {
-  cd $name-$version
-
-  sed "s|CFLAGS=|CFLAGS=$CFLAGS |" -i Makefile
-  make
-
-  install -D -m 0755 $name $PKG/usr/bin/$name
-  install -D -m 0644 doc/$name.1 $PKG/usr/share/man/man1/$name.1
-}