qutebrowser: remove webkit support

WebKit support will soon be dropped upstream. Also removes the media
plugin codepath, which was only used by webkit.

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

@@ -1,16 +1,13 @@
 { stdenv, lib, fetchurl, fetchzip, python3
 , wrapQtAppsHook, glib-networking
 , asciidoc, docbook_xml_dtd_45, docbook_xsl, libxml2
-, libxslt, gst_all_1 ? null
+, libxslt
 , withPdfReader      ? true
-, withMediaPlayback  ? true
-, backend            ? "webengine"
 , pipewireSupport    ? stdenv.isLinux
 , pipewire
 , qtwayland
 , qtbase
 , qtwebengine
-, wrapGAppsHook
 , enableWideVine ? false
 , widevine-cdm
 , enableVulkan ? stdenv.isLinux
@@ -31,12 +28,6 @@ let
   version = "3.0.0";
 in
 
-assert withMediaPlayback -> gst_all_1 != null;
-assert lib.assertMsg (backend != "webkit") ''
-  Support for the QtWebKit backend has been removed.
-  Please remove the `backend = "webkit"` option from your qutebrowser override.
-'';
-
 python3.pkgs.buildPythonApplication {
   inherit pname version;
   src = fetchurl {
@@ -50,13 +41,10 @@ python3.pkgs.buildPythonApplication {
   buildInputs = [
     qtbase
     glib-networking
-  ] ++ lib.optionals withMediaPlayback (with gst_all_1; [
-    gst-plugins-base gst-plugins-good
-    gst-plugins-bad gst-plugins-ugly gst-libav
-  ]);
+  ];
 
   nativeBuildInputs = [
-    wrapQtAppsHook wrapGAppsHook asciidoc
+    wrapQtAppsHook asciidoc
     docbook_xml_dtd_45 docbook_xsl libxml2 libxslt
     python3.pkgs.pygments
   ];
@@ -76,7 +64,6 @@ python3.pkgs.buildPythonApplication {
     ./fix-restart.patch
   ];
 
-  dontWrapGApps = true;
   dontWrapQtApps = true;
 
   postPatch = ''
@@ -114,7 +101,6 @@ python3.pkgs.buildPythonApplication {
   in
     ''
     makeWrapperArgs+=(
-      "''${gappsWrapperArgs[@]}"
       "''${qtWrapperArgs[@]}"
       ${lib.optionalString pipewireSupport ''--prefix LD_LIBRARY_PATH : ${libPath}''}
       ${lib.optionalString (enableVulkan) ''