Merge pull request #267965 from wegank/vtm-clang-16

vtm: drop stdenv override

pkgs/top-level/all-packages.nix

···
     SDL = SDL_sixel;
   };
 
-  vtm = callPackage ../tools/misc/vtm {
-    stdenv = if stdenv.isDarwin then llvmPackages_16.stdenv else stdenv;
-  };
+  vtm = callPackage ../tools/misc/vtm { };
 
   witness = callPackage ../tools/security/witness { };