nixos: remove boot.loader.raspberryPi

This has been announced for 24.11 in #241534, so let's follow through.

Author: wolfgangwalther

nixos/doc/manual/release-notes/rl-2411.section.md

@@ -803,6 +803,8 @@
 
 - The new `boot.loader.systemd-boot.windows` option makes setting up dual-booting with Windows on a different drive easier.
 
+- The `boot.loader.raspberryPi` options were marked as deprecated in 23.11 and have now been removed.
+
 - Linux 4.19 has been removed because it will reach its end of life within the lifespan of 24.11.
 
 - Unprivileged access to the kernel syslog via `dmesg` is now restricted by default. Users wanting to keep an

nixos/modules/module-list.nix

@@ -1632,7 +1632,6 @@
   ./system/boot/loader/external/external.nix
   ./system/boot/loader/init-script/init-script.nix
   ./system/boot/loader/loader.nix
-  ./system/boot/loader/raspberrypi/raspberrypi.nix
   ./system/boot/loader/systemd-boot/systemd-boot.nix
   ./system/boot/luksroot.nix
   ./system/boot/stratisroot.nix

nixos/modules/rename.nix

@@ -20,6 +20,7 @@ in
     (mkAliasOptionModuleMD [ "environment" "checkConfigurationOptions" ] [ "_module" "check" ])
 
     # Completely removed modules
+    (mkRemovedOptionModule [ "boot" "loader" "raspberryPi" ] "The raspberryPi boot loader has been removed. See https://github.com/NixOS/nixpkgs/pull/241534 for what to use instead.")
     (mkRemovedOptionModule [ "environment" "blcr" "enable" ] "The BLCR module has been removed")
     (mkRemovedOptionModule [ "environment" "noXlibs" ] ''
       The environment.noXlibs option was removed, as it often caused surprising breakages for new users.