Motivation for this change

BeeGFS has been marked as broken in #66352, because of the following:

BeeGFS is a fantastic high performance file system. However, after running it for a few months last year the meta data daemon kept crashing randomly in production use (support from the manufacturer requires a paid support contract). The current version that is nixpkgs is outdated and I don not want to maintain it any longer. The build system is purely based on make file and is hard to maintain.

There were already plans to remove it in a later release at #66352 (comment), so this PR does that.

Closes #73998

Things done

• Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS linux)
• Built on platform(s)
  • NixOS
  • macOS
  • other Linux distributions
• Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
• Tested compilation of all pkgs that depend on this change using nix-shell -p nix-review --run "nix-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Determined the impact on package closure size (by running nix path-info -S before and after)
• Ensured that relevant documentation is up to date
• Fits CONTRIBUTING.md.

Notify maintainers

cc @