Remove enableGnome2 property from JDK derivation

jdk.nix

@@ -9,10 +9,7 @@
 if buildPlatform == hostPlatform
 then jdk21
 else
-  (jdk21.override {
-    # libIDL does not compile in cross-compile scenarios.
-    enableGnome2 = false;
-  }).overrideAttrs (old: {
+  jdk21.overrideAttrs (old: {
     # lol, nixpkgs can’t get pkgs right
     # AUTOCONF = "${autoconf}/bin/autoconf";
     nativeBuildInputs = old.nativeBuildInputs ++ [which zip];