rdedup: migrate to bindgenHook

pkgs/tools/backup/rdedup/default.nix

@@ -1,5 +1,5 @@
 { lib, stdenv, fetchFromGitHub, rustPlatform, pkg-config, openssl, libsodium
-, llvmPackages, clang, xz
+, xz
 , Security }:
 
 rustPlatform.buildRustPackage rec {
@@ -15,14 +15,10 @@ rustPlatform.buildRustPackage rec {
 
   cargoSha256 = "sha256-I6d3IyPBcUsrvlzF7W0hFM4hcXi4wWro9bCeP4eArHI=";
 
-  nativeBuildInputs = [ pkg-config llvmPackages.libclang clang ];
+  nativeBuildInputs = [ pkg-config rustPlatform.bindgenHook ];
   buildInputs = [ openssl libsodium xz ]
     ++ (lib.optional stdenv.isDarwin Security);
 
-  configurePhase = ''
-    export LIBCLANG_PATH="${llvmPackages.libclang.lib}/lib"
-  '';
-
   meta = with lib; {
     description = "Data deduplication with compression and public key encryption";
     homepage = "https://github.com/dpc/rdedup";