xdelta3: dropped unmaintained port

xdelta3/.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/xdelta3
-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/xdelta3.1.gz

xdelta3/.signature

@@ -1,5 +0,0 @@
-untrusted comment: verify with /etc/ports/contrib.pub
-RWSagIOpLGJF32UhhraKm64UdZV0MV8bZZhO2P6YXE5d/hCB6rOsDVhhU9Io0KqxH/BDx70H8i6mm92mci05oDdZ/iZIv5s7gwM=
-SHA256 (Pkgfile) = f34fba661f917fb48d37827453bcfbe2d1ab33f71d9d6cfa842a258fada6339f
-SHA256 (.footprint) = 8cbc570d82c3fb9d56ac132df3d516cbcb20c99756b32d42e618fe2d0590a0cd
-SHA256 (xdelta3-3.1.0.tar.gz) = 114543336ab6cee3764e3c03202701ef79d7e5e8e4863fe64811e4d9e61884dc

xdelta3/Pkgfile

@@ -1,16 +0,0 @@
-# Description: A binary diff tool that uses the VCDIFF (RFC 3284) format and compression.
-# URL: http://xdelta.org/
-# Maintainer: unmaintained
-# Depends on: xz
-
-name=xdelta3
-version=3.1.0
-release=1
-source=(https://github.com/jmacd/xdelta-gpl/releases/download/v$version/$name-$version.tar.gz)
-
-build() {
-  cd $name-$version
-  ./configure --prefix=/usr
-  make
-  make DESTDIR=$PKG install
-}