chromium: remove unused GConf dependency

GConf has been deprecated for ages and support for it removed from Chromium a while ago:

- Removal of `use_gconf` gn build system flag:
  a28f4d062f

pkgs/applications/networking/browsers/chromium/common.nix

@@ -39,13 +39,12 @@
 , glibc # gconv + locale
 
 # Package customization:
-, gnomeSupport ? false, gnome2 ? null
 , cupsSupport ? true, cups ? null
 , proprietaryCodecs ? true
 , pulseSupport ? false, libpulseaudio ? null
 , ungoogled ? false, ungoogled-chromium
 # Optional dependencies:
-, libgcrypt ? null # gnomeSupport || cupsSupport
+, libgcrypt ? null # cupsSupport
 , systemdSupport ? stdenv.isLinux
 , systemd
 }:
@@ -153,7 +152,6 @@ let
       curl
       libepoxy
     ] ++ optional systemdSupport systemd
-      ++ optionals gnomeSupport [ gnome2.GConf libgcrypt ]
       ++ optionals cupsSupport [ libgcrypt cups ]
       ++ optional pulseSupport libpulseaudio;
 

pkgs/applications/networking/browsers/chromium/default.nix

@@ -8,7 +8,6 @@
 # package customization
 # Note: enable* flags should not require full rebuilds (i.e. only affect the wrapper)
 , channel ? "stable"
-, gnomeSupport ? false, gnome2 ? null
 , proprietaryCodecs ? true
 , enableWideVine ? false
 , ungoogled ? false # Whether to build chromium or ungoogled-chromium
@@ -45,7 +44,7 @@ let
 
     mkChromiumDerivation = callPackage ./common.nix ({
       inherit channel chromiumVersionAtLeast versionRange;
-      inherit gnome2 gnomeSupport proprietaryCodecs
+      inherit proprietaryCodecs
               cupsSupport pulseSupport ungoogled;
       gnChromium = gn.overrideAttrs (oldAttrs: {
         inherit (upstream-info.deps.gn) version;