fix(mcl/default.nix): Remove dmd compiler flags from build and test configurations

Author: monyarm

packages/default.nix

@@ -69,7 +69,7 @@
         // optionalAttrs (system == "x86_64-linux") {
           mcl = pkgs.callPackage ./mcl {
             buildDubPackage = inputs'.dlang-nix.legacyPackages.buildDubPackage.override {
-              dCompiler = inputs'.dlang-nix.packages."ldc-binary-1_34_0";
+              dCompiler = inputs'.dlang-nix.packages."ldc-binary-1_38_0";
             };
             inherit (legacyPackages.inputs.nixpkgs) cachix nix nix-eval-jobs;
           };

packages/mcl/default.nix

@@ -56,13 +56,11 @@ buildDubPackage rec {
   '';
 
   dubBuildFlags = [
-    "--compiler=dmd"
     "-b"
     "debug"
   ];
 
   dubTestFlags = [
-    "--compiler=dmd"
     "--"
     "-e"
     excludedTests