Remove a bunch of unreferenced files

Plus a small number of obsolete packages (like old versions of qemu).

pkgs/tools/archivers/cpio/latest.nix

@@ -1,45 +0,0 @@
-{stdenv, fetchurl}:
-
-stdenv.mkDerivation ({
-  name = "cpio-2.11";
-
-  src = fetchurl {
-    url = mirror://gnu/cpio/cpio-2.11.tar.bz2;
-    sha256 = "1gavgpzqwgkpagjxw72xgxz52y1ifgz0ckqh8g7cckz7jvyhp0mv";
-  };
-
-  # Tests fail on Darwin, see
-  # <http://lists.gnu.org/archive/html/bug-cpio/2010-07/msg00012.html> for
-  # details.
-  doCheck = !stdenv.isDarwin;
-
-  meta = {
-    homepage = http://www.gnu.org/software/cpio/;
-    description = "GNU cpio, a program to create or extract from cpio archives";
-
-    longDescription =
-      '' GNU cpio copies files into or out of a cpio or tar archive.  The
-         archive can be another file on the disk, a magnetic tape, or a pipe.
-
-         GNU cpio supports the following archive formats: binary, old ASCII,
-         new ASCII, crc, HPUX binary, HPUX old ASCII, old tar, and POSIX.1
-         tar.  The tar format is provided for compatability with the tar
-         program.  By default, cpio creates binary format archives, for
-         compatibility with older cpio programs.  When extracting from
-         archives, cpio automatically recognizes which kind of archive it is
-         reading and can read archives created on machines with a different
-         byte-order.
-      '';
-
-    license = "GPLv3+";
-
-    maintainers = [ stdenv.lib.maintainers.ludo ];
-    platforms = stdenv.lib.platforms.all;
-  };
-}
-
-//
-
-(if stdenv.isLinux
- then {}
- else { patches = [ ./darwin-fix.patch ]; }))