libreoffice-still: drop gnome2 dependencies

They are not needed any more:

* ORBit2: a219edfbb6
* GConf: 3cf557c12d
* gnome_vfs: b40b601007

pkgs/applications/office/libreoffice/default.nix

@@ -3,8 +3,8 @@
 , libxml2, db, curl, fontconfig, libsndfile, neon
 , bison, flex, zip, unzip, gtk3, gtk2, libmspack, getopt, file, cairo, which
 , icu, boost, jdk, ant, cups, xorg, libcmis, fontforge
-, openssl, gperf, cppunit, GConf, ORBit2, poppler, utillinux
-, librsvg, gnome_vfs, libGLU, libGL, bsh, CoinMP, libwps, libabw, libmysqlclient
+, openssl, gperf, cppunit, poppler, utillinux
+, librsvg, libGLU, libGL, bsh, CoinMP, libwps, libabw, libmysqlclient
 , autoconf, automake, openldap, bash, hunspell, librdf_redland, nss, nspr
 , libwpg, dbus-glib, qt4, clucene_core, libcdr, lcms, vigra
 , unixODBC, mdds, sane-backends, mythes, libexttextcat, libvisio
@@ -347,13 +347,13 @@ in (stdenv.mkDerivation rec {
   buildInputs = with xorg;
     [ ant ArchiveZip boost cairo clucene_core
       IOCompress cppunit cups curl db dbus-glib expat file flex fontconfig
-      freetype GConf getopt gnome_vfs gperf gtk3 gtk2
+      freetype getopt gperf gtk3 gtk2
       hunspell icu jdk lcms libcdr libexttextcat unixODBC libjpeg
       libmspack librdf_redland librsvg libsndfile libvisio libwpd libwpg libX11
       libXaw libXext libXi libXinerama libxml2 libxslt libXtst
       libXdmcp libpthreadstubs libGLU libGL mythes gst_all_1.gstreamer
       gst_all_1.gst-plugins-base glib libmysqlclient
-      neon nspr nss openldap openssl ORBit2 pam perl pkgconfig poppler
+      neon nspr nss openldap openssl pam perl pkgconfig poppler
       python3 sane-backends unzip vigra which zip zlib
       mdds bluez5 libcmis libwps libabw libzmf
       libxshmfence libatomic_ops graphite2 harfbuzz gpgme utillinux

pkgs/top-level/all-packages.nix

@@ -20270,7 +20270,6 @@ in
 
   libreoffice-args = {
     inherit (perlPackages) ArchiveZip IOCompress;
-    inherit (gnome2) GConf ORBit2 gnome_vfs;
     zip = zip.override { enableNLS = false; };
     fontsConf = makeFontsConf {
       fontDirectories = [