go_1_17: enable on x86_64-darwin

Apparently this does not depend on stdenv's macOS SDK at all,
and carries around its own go-specific toolchain. So this works
fine as-is and doesn't need any changes in Nixpkgs to support a
10.13 deployment target.

pkgs/development/compilers/go/1.17.nix

@@ -273,7 +273,5 @@ stdenv.mkDerivation rec {
     license = licenses.bsd3;
     maintainers = teams.golang.members;
     platforms = platforms.linux ++ platforms.darwin;
-    # requires >=10.13 stdenv on x86_64-darwin
-    badPlatforms = [ "x86_64-darwin" ];
   };
 }

pkgs/top-level/all-packages.nix

@@ -20228,9 +20228,8 @@ with pkgs;
     go = buildPackages.go_1_16;
   };
   # go_1_17 has go module changes which may not be portable
-  # across different go versions and/or platforms,
-  # it also requires >=10.13 stdenv on darwin which
-  # is not currently available for x86_64-darwin
+  # across different go versions and/or platforms:
+  # https://github.com/NixOS/nixpkgs/issues/144667
   #
   # do not uncomment this without approval from the go CODEOWNERS
   #buildGo117Package = callPackage ../development/go-packages/generic {
@@ -20246,9 +20245,8 @@ with pkgs;
     go = buildPackages.go_1_16;
   };
   # go_1_17 has go module changes which may not be portable
-  # across different go versions and/or platforms,
-  # it also requires >=10.13 stdenv on darwin which
-  # is not currently available for x86_64-darwin
+  # across different go versions and/or platforms:
+  # https://github.com/NixOS/nixpkgs/issues/144667
   #
   # do not uncomment this without approval from the go CODEOWNERS
   #buildGo117Module = callPackage ../development/go-modules/generic {