Remove unreferenced files

This commit removes files that are not referenced in nixpkgs anymore. I
have created this list by finding potential candidates using

  find nixpkgs/pkgs -type d -links 2 | parallel -N 1 'out=`grep -L {}  top-level/all-packages.nix`;  test -n "$out" && echo  {}'

and have then searched for those candidates with grep in whole nixpkgs.

pkgs/development/libraries/libgdata/0.6.nix

@@ -1,51 +0,0 @@
-x@{builderDefsPackage
-  , glib, libsoup, libxml2, pkgconfig, intltool, perl
-  , libtasn1, nettle, gmp
-  , ...}:
-builderDefsPackage
-(a :  
-let 
-  helperArgNames = ["stdenv" "fetchurl" "builderDefsPackage"] ++ 
-    [];
-
-  buildInputs = map (n: builtins.getAttr n x)
-    (builtins.attrNames (builtins.removeAttrs x helperArgNames));
-  sourceInfo = rec {
-    baseName="libgdata";
-    majorVersion="0.6";
-    minorVersion="6";
-    version="${majorVersion}.${minorVersion}";
-    name="${baseName}-${version}";
-    url="mirror://gnome/sources/${baseName}/${majorVersion}/${name}.tar.bz2";
-    hash="cf6de3b60443faaf8e9c3b4c4b160c22a48df7925c1c793a7bb71d3d746f69f5";
-  };
-in
-rec {
-  src = a.fetchurl {
-    url = sourceInfo.url;
-    sha256 = sourceInfo.hash;
-  };
-
-  inherit (sourceInfo) name version;
-  inherit buildInputs;
-
-  /* doConfigure should be removed if not needed */
-  phaseNames = ["doConfigure" "doMakeInstall"];
-      
-  meta = {
-    description = "GData API library";
-    maintainers = with a.lib.maintainers;
-    [
-      raskin
-    ];
-    platforms = with a.lib.platforms;
-      linux;
-    license = a.lib.licenses.lgpl21Plus;
-  };
-  passthru = {
-    updateInfo = {
-      downloadPage = "http://ftp.gnome.org/pub/GNOME/sources/${sourceInfo.baseName}/${sourceInfo.majorVersion}";
-    };
-  };
-}) x
-