sdrangel: adjust for new Darwin SDK pattern

pkgs/applications/radio/sdrangel/default.nix

@@ -3,6 +3,7 @@
   stdenv,
   airspy,
   airspyhf,
+  apple-sdk_12,
   aptdec,
   boost,
   cm256cc,
@@ -113,6 +114,7 @@ stdenv.mkDerivation (finalAttrs: {
       zlib
     ]
     ++ lib.optionals stdenv.hostPlatform.isLinux [ qtwayland ]
+    ++ lib.optionals stdenv.hostPlatform.isDarwin [ apple-sdk_12 ]
     ++ lib.optionals withSDRplay [ sdrplay ];
 
   cmakeFlags = [

pkgs/top-level/all-packages.nix

@@ -12227,9 +12227,7 @@ with pkgs;
 
   sddm-sugar-dark = libsForQt5.callPackage ../data/themes/sddm-sugar-dark { };
 
-  sdrangel = qt6Packages.callPackage ../applications/radio/sdrangel {
-    stdenv = if stdenv.hostPlatform.isDarwin then overrideSDK stdenv "12.3" else stdenv;
-  };
+  sdrangel = qt6Packages.callPackage ../applications/radio/sdrangel { };
 
   sgx-sdk = callPackage ../os-specific/linux/sgx/sdk { };