Remove aiccu package and service due to sunsetting.

https://www.sixxs.net/main/

pkgs/tools/networking/aiccu/default.nix

@@ -1,43 +0,0 @@
-{ stdenv, fetchurl, gnutls, iproute, makeWrapper }:
-
-stdenv.mkDerivation rec {
-
-  name = "aiccu-${version}";
-  version = "20070115";
-
-  src = fetchurl {
-    url = "http://http.debian.net/debian/pool/main/a/aiccu/aiccu_20070115.orig.tar.gz";
-    sha256 = "1k73vw7i25qzmnbvmsp3ci4pm6h8q70w70vnr512517s2q5gag6j";
-  };
-
-  buildInputs = [ gnutls iproute makeWrapper ];
-
-  patches = [
-    (fetchurl {
-      url = "https://projects.archlinux.org/svntogit/community.git/plain/trunk/gnutls-3.4.0.patch?h=packages/aiccu&id=cc6decc4e734420e4c5d0cd28652077f6bd88d84";
-      sha256 = "1ni3lhwy3r54js124p7fhm1my82a703chvh07vrhslb4v4b71g5s";
-      name = "gnutls-3.4.0.patch";
-    })
-  ];
-
-  configureFlags = "--prefix=$out";
-  installPhase = ''
-    install -D -m 755 unix-console/aiccu $out/bin/aiccu
-    install -D -m 644 doc/aiccu.sgml $out/doc/aiccu.sgml
-    install -D -m 644 doc/aiccu.1 $out/share/man/man1/aiccu.1
-    wrapProgram "$out/bin/aiccu" \
-      --prefix PATH : "${iproute}/bin"
-  '';
-
-  meta = with stdenv.lib; {
-    description = "Automatic IPv6 Connectivity Configuration Utility";
-    homepage = "https://www.sixxs.net/tools/aiccu/";
-    longDescription = ''
-      A TIC+ heartbeart client for the public dynamic-IPv4 IPv6 tunnel beta test from the SixXS tunnel service provider.
-    '';
-    maintainers = with maintainers; [ edwtjo ];
-    license = "SixXS";
-    platforms = with platforms; linux;
-  };
-
-}