Create helper to build the ebpf programs

dropworld/default.nix

@@ -1,16 +0,0 @@
-{clangStdenv, libbpf, ...}: clangStdenv.mkDerivation {
-  name = "dropworld";
-  src = ./.;
-  hardeningDisable = [ "stackprotector" "zerocallusedregs" ];
-  dontFixup = true;
-  buildInputs = [ libbpf ];
-
-  buildPhase = ''
-    clang -O2 -target bpf -g -c dropworld.c -o dropworld.o
-  '';
-
-  installPhase = ''
-    mkdir $out
-    cp dropworld.o $out
-  '';
-}