nix: custom lief override is no longer needed

overlay.nix

@@ -15,65 +15,6 @@ final: prev:
   # Own package updated independently of nixpkgs
   jefferson = final.callPackage ./nix/jefferson { };
 
-  lief = prev.lief.overrideAttrs (super: with final; {
-
-    outputs = [ "out" "py" ];
-
-    nativeBuildInputs = [
-      cmake
-      ninja
-    ];
-
-    # Not a propagatedBuildInput because only the $py output needs it; $out is
-    # just the library itself (e.g. C/C++ headers).
-    buildInputs = with python3.pkgs; [
-      python3
-      setuptools
-      tomli
-    ];
-
-    env.CXXFLAGS = toString (lib.optional stdenv.isLinux [ "-ffunction-sections" "-fdata-sections" "-fvisibility-inlines-hidden" "-static-libstdc++" "-static-libgcc" ]
-      ++ lib.optional stdenv.isDarwin [ "-faligned-allocation" "-fno-aligned-new" "-fvisibility=hidden" ]);
-
-    env.CFLAGS = toString (lib.optional stdenv.isLinux [ "-ffunction-sections" "-fdata-sections" "-static-libstdc++" "-static-libgcc" ]);
-    env.LDFLAGS = toString (lib.optional stdenv.isLinux [ "-Wl,--gc-sections" "-Wl,--exclude-libs,ALL" ]);
-
-
-    dontUseCmakeConfigure = true;
-
-    buildPhase = ''
-      runHook preBuild
-
-      mkdir -p build
-      cmake -S . -B build -GNinja -DCMAKE_LINK_WHAT_YOU_USE=on -DBUILD_SHARED_LIBS=on -DLIEF_INSTALL_COMPILED_EXAMPLES=off -DCMAKE_INSTALL_PREFIX=$out -DCMAKE_BUILD_TYPE=Release
-
-      cmake --build build --target all
-
-      runHook postBuild
-    '';
-
-    postBuild = ''
-      pushd api/python
-      ${python3.interpreter} setup.py build --parallel=$NIX_BUILD_CORES
-      popd
-    '';
-
-    installPhase = ''
-      runHook preInstall
-
-      cmake --build build --target install
-
-      runHook postInstall
-    '';
-
-    postInstall = ''
-      pushd api/python
-      ${python3.interpreter} setup.py install --skip-build --root=/ --prefix=$py
-      popd
-    '';
-
-  });
-
   pythonPackagesExtensions = prev.pythonPackagesExtensions ++ [
     (python-final: python-prev: {
       # Missing from nixpkgs