rhythmbox: Drop released patch

3.4.9 was bumped via master branch but the patch was added via wip-gnome
branch. The merge causes the build failure.

pkgs/by-name/rh/rhythmbox/package.nix

@@ -2,7 +2,6 @@
   stdenv,
   lib,
   fetchurl,
-  fetchpatch,
   pkg-config,
   meson,
   ninja,
@@ -47,15 +46,6 @@ stdenv.mkDerivation rec {
     sha256 = "5CKRoY33oh/+azUr9z8F1+KYu04FvOWWf5jujO5ECPE=";
   };
 
-  patches = [
-    # Add support for girepository 2.0
-    # https://gitlab.gnome.org/GNOME/rhythmbox/-/issues/2113
-    (fetchpatch {
-      url = "https://gitlab.gnome.org/GNOME/rhythmbox/-/commit/0cc5960f8ae516967515554eaa89faa9796701c5.patch";
-      hash = "sha256-IAOaQBDCyRkzzrxwdYQKm8Si8sn5yeBFWqKbe5mUU6k=";
-    })
-  ];
-
   postPatch = ''
     # We backported girepository-2.0 support to libpeas 1.36
     substituteInPlace meson.build \