Remove nixCustomFun

Rationale: on the one hand, there are generic customisation facilities
like overrideDerivation; on the other hand, nixCustomFun cannot
possibly accomodate every customisation scenario, so it's easier to
just modify/copy default.nix.

pkgs/tools/package-management/nix/custom.nix

@@ -1,68 +0,0 @@
-{ stdenv, fetchurl, aterm, db4, perl, curl, bzip2, openssl ? null
-, storeDir ? "/nix/store"
-, stateDir ? "/nix/var"
-, src
-, preConfigure ? ""
-, autoconf ? null, automake ? null, libtool ? null
-, bison ? null
-, flex ? null
-, w3m ? null
-, libxml2 ? null
-, docbook5_xsl ? null, libxslt ? null
-, docbook5 ? null, docbook_xml_dtd_43 ? null 
-, perlPackages
-, boehmgc ? null
-, pkgconfig ? null
-, sqlite ? null
-, configureFlags ? []
-, lib
-, enableScripts ? []
-}:
-
-stdenv.mkDerivation {
-  name = "nix-custom";
-  
-  inherit src;
-
-  buildInputs = [perl curl openssl bzip2 ] 
-  	++ (if automake != null then [automake] else [])
-  	++ (if autoconf != null then [autoconf] else [])
-  	++ (if libtool != null then [libtool] else [])
-  	++ (if bison != null then [bison] else [])
-  	++ (if flex != null then [flex] else [])
-  	++ (if docbook5_xsl != null then [docbook5_xsl] else [])
-  	++ (if libxslt != null then [libxslt] else [])
-  	++ (if docbook5 != null then [docbook5] else [])
-  	++ (if docbook_xml_dtd_43 != null then [docbook_xml_dtd_43] else [])
-  	++ (if w3m != null then [w3m] else [])
-  	++ (if libxml2 != null then [libxml2] else [])
-  	++ (if boehmgc != null then [boehmgc] else [])
-  	++ (if sqlite != null then [sqlite] else [])
-  	++ (if pkgconfig != null then [pkgconfig] else [])
-  ;
-
-  preConfigure = 
-    (lib.concatMapStrings (script:
-      ''
-        sed -e '/bin_SCRIPTS = /a${script} \\' -i scripts/Makefile.am
-      ''
-    ) enableScripts)
-    + preConfigure
-    + "\n./bootstrap.sh";
-
-  configureFlags = ''
-    --with-store-dir=${storeDir} --localstatedir=${stateDir}
-    --with-aterm=${aterm} --with-bdb=${db4} --with-bzip2=${bzip2}
-    --with-sqlite=${sqlite}
-    --disable-init-state
-    --with-dbi=${perlPackages.DBI}/lib/perl5/site_perl
-    --with-dbd-sqlite=${perlPackages.DBDSQLite}/lib/perl5/site_perl
-    ${toString configureFlags}
-  '';
-
-  meta = {
-    description = "The Nix Deployment System";
-    homepage = http://nixos.org/;
-    license = "LGPL";
-  };
-}

pkgs/top-level/all-packages.nix

@@ -8859,16 +8859,6 @@ let
     stateDir = config.nix.stateDir or "/nix/var";
   };
 
-  nixCustomFun = src: preConfigure: enableScripts: configureFlags:
-    import ../tools/package-management/nix/custom.nix {
-      inherit fetchurl stdenv perl curl bzip2 openssl src preConfigure automake
-        autoconf libtool configureFlags enableScripts lib libxml2 boehmgc
-        pkgconfig flex bison sqlite perlPackages;
-      aterm = aterm25;
-      db4 = db45;
-      inherit docbook5_xsl libxslt docbook5 docbook_xml_dtd_43 w3m;
-    };
-
   nut = callPackage ../applications/misc/nut { };
 
   nut_2_6_3 = callPackage ../applications/misc/nut/2.6.3.nix { };