Remove xsltproc package. Duplicate of libxslt.

packages/xsltproc.rb

-require 'package'
-
-class Xsltproc < Package
-  description 'The XSLT C library for GNOME'
-  homepage 'http://xmlsoft.org/XSLT/xsltproc2.html'
-  version '1.1.33-rc1'
-  source_url 'https://git.gnome.org/browse/libxslt/snapshot/libxslt-1.1.33-rc1.tar.xz'
-  source_sha256 '5e257266ba8472c5c319aff87d54140edb950972805cbf5bcf45c4a040c16506'
-
-  def self.build
-    system "./autogen.sh", "--prefix=#{CREW_PREFIX}", "--libdir=#{CREW_LIB_PREFIX}"
-    system "make"
-  end
-
-  def self.install
-    system "make", "DESTDIR=#{CREW_DEST_DIR}", "install"
-  end
-end