fedimint: drop various darwin workarounds, use new sdk pattern

pkgs/by-name/fe/fedimint/package.nix

@@ -1,28 +1,13 @@
 { lib
 , buildPackages
-, clang
 , fetchFromGitHub
-, libclang
-, libiconv
-, llvmPackages_12
 , openssl
 , pkg-config
 , protobuf
 , rustPlatform
-, stdenv
-, Security
-, SystemConfiguration
 }:
-let
-  # Rust rocksdb bindings have C++ compilation/linking errors on Darwin when using newer clang
-  # Forcing it to clang 12 fixes the issue.
-  buildRustPackage =
-    if stdenv.hostPlatform.isDarwin then
-      rustPlatform.buildRustPackage.override { stdenv = llvmPackages_12.stdenv; }
-    else
-      rustPlatform.buildRustPackage;
-in
-buildRustPackage rec {
+
+rustPlatform.buildRustPackage rec {
   pname = "fedimint";
   version = "0.4.4";
 
@@ -38,18 +23,11 @@ buildRustPackage rec {
   nativeBuildInputs = [
     protobuf
     pkg-config
-    clang
-    (lib.getLib libclang)
     rustPlatform.bindgenHook
   ];
 
   buildInputs = [
     openssl
-  ] ++ lib.optionals stdenv.hostPlatform.isDarwin [
-    Security
-    libiconv
-    Security
-    SystemConfiguration
   ];
 
   outputs = [ "out" "fedimintCli" "fedimint" "gateway" "gatewayCli" "devimint" ];

pkgs/top-level/all-packages.nix

@@ -2345,10 +2345,6 @@ with pkgs;
 
   fdroidcl = pkgs.callPackage ../development/mobile/fdroidcl { };
 
-  fedimint = callPackage ../by-name/fe/fedimint/package.nix {
-    inherit (darwin.apple_sdk.frameworks) Security SystemConfiguration;
-  };
-
   flowgger = callPackage ../tools/misc/flowgger {
     inherit (darwin.apple_sdk.frameworks) CoreServices;
   };