treewide: remove obsolete TARGET_OS_* workarounds (again) (#371476)

Author: emilazy

pkgs/by-name/ad/adalanche/package.nix

@@ -28,10 +28,6 @@ buildGoModule rec {
     "-X=github.com/lkarlslund/adalanche/modules/version.Version=${version}"
   ];
 
-  env = {
-    CGO_CFLAGS = "-Wno-undef-prefix";
-  };
-
   meta = with lib; {
     description = "Active Directory ACL Visualizer and Explorer";
     homepage = "https://github.com/lkarlslund/adalanche";

pkgs/by-name/nr/nray/package.nix

@@ -22,10 +22,6 @@ buildGoModule rec {
     "-w"
   ];
 
-  env = {
-    CGO_CFLAGS = "-Wno-undef-prefix";
-  };
-
   meta = with lib; {
     description = "Distributed port scanner";
     homepage = "https://github.com/nray-scanner/nray";

pkgs/by-name/th/thc-hydra/package.nix

@@ -43,8 +43,6 @@ stdenv.mkDerivation rec {
         --replace-fail "-lcurses" "-lncurses"
     '';
 
-  env.NIX_CFLAGS_COMPILE = lib.optionalString stdenv.hostPlatform.isDarwin "-Wno-undef-prefix";
-
   nativeBuildInputs = lib.optionals withGUI [
     pkg-config
     makeWrapper