nixpkgs: remove ancient commented-out patches

pkgs/additional/nixpkgs/list.nix

@@ -53,7 +53,8 @@ in
 
   # branch: wip-ffado-cross
   (fetchpatch' {
-    # TODO: send out for review (after jtolnar's stuff is merged)
+    # TODO: send out for review (after jtojnar's stuff is merged)
+    # - <https://github.com/NixOS/nixpkgs/pull/306407>
     title = "ffado: support cross compilation";
     saneCommit = "001fe13a735cb9c6fad80525531e863f949e1495";
     hash = "sha256-rVsFR8vRTHqFJgDQFHI/E0LtllqKr79FyR92HPeLUb8=";
@@ -73,8 +74,8 @@ in
     hash = "sha256-IW+0u5lytIPU3xhgGtYgexXUrS2VFXAV6GC50jJS5ak=";
   })
 
-  # 2024/02/25: still outstanding
   # (fetchpatch' {
+  #   # 2024/06/08: still outstanding
   #   title = "hspell: remove build perl from runtime closure";
   #   prUrl = "https://github.com/NixOS/nixpkgs/pull/263182";
   #   hash = "sha256-Wau+PB+EUQDvWX8Kycw1sNrM3GkPVjKSS4niIDI0sjM=";
@@ -159,18 +160,6 @@ in
   #   hash = "sha256-oQEM3EZfAOmfZzDu9faCqyOFZsdHYGn1mVBgkxt68Zg=";
   # })
 
-  # (fetchpatch {
-  #   # stdenv: fix cc for pseudo-crosscompilation
-  #   # closed because it breaks pkgsStatic (as of 2023/02/12)
-  #   url = "https://github.com/NixOS/nixpkgs/pull/196497.diff";
-  #   hash = "sha256-eTwEbVULYjmOW7zUFcTUqvBZqUFjHTKFhvmU2m3XQeo=";
-  # })
-
-  # for raspberry pi: allow building u-boot for rpi 4{,00}
-  # TODO: remove after upstreamed: https://github.com/NixOS/nixpkgs/pull/176018
-  #   (it's a dupe of https://github.com/NixOS/nixpkgs/pull/112677 )
-  # ./02-rpi4-uboot.patch
-
   # (fetchpatch' {
   #   title = "gnustep: remove `rec` to support `overrideScope`";
   #   saneCommit = "69162cbf727264e50fc9d7222a03789d12644705";
@@ -199,28 +188,4 @@ in
   #   saneCommit = "7a4191c570b0e5a1ab257222c26a4a2ecb945037";
   #   hash = "sha256-FiPJhHGqZ8MFwLY+1t6HgbK6ndomFSYUKvApvrikRHE=";
   # })
-
-  # (fetchpatch' {
-  #   # doesn't apply cleanly. use build result in <working/zcash>
-  #   title = "zcash: 5.4.2 -> 5.7.0";
-  #   prUrl = "https://github.com/NixOS/nixpkgs/pull/229810";
-  #   hash = "sha256-ProoPJ10rUtOZh2PzpegviG6Ip1zSuWC92BpP+ux9ZQ=";
-  # })
-  # (fetchpatch' {
-  #   # disabled, at least until the PR is updated to use `pkg-config` instead of `pkgconfig`.
-  #   # the latter is an alias, which breaks nix-index
-  #   title = "phog: init at 0.1.3";
-  #   prUrl = "https://github.com/NixOS/nixpkgs/pull/251249";
-  #   hash = "sha256-e38Z7sO7xDQHzE9UOfbptc6vJuONE5eP9JFp2Nzx53E=";
-  # })
-
-  # fix qt6.qtbase and qt6.qtModule to cross-compile.
-  # unfortunately there's some tangle that makes that difficult to do via the normal `override` facilities
-  # ./2023-03-03-qtbase-cross-compile.patch
-
-  # qt6 qtwebengine: specify `python` as buildPackages
-  # ./2023-06-02-qt6-qtwebengine-cross.patch
-
-  # Jellyfin: don't build via `libsForQt5.callPackage`
-  # ./2023-06-06-jellyfin-no-libsForQt5-callPackage.patch
 ]