scmpuff: remove unnecessary `platforms`

See #153464, for buildGoModule this should only be set if the package doesn't work with the default platforms.

pkgs/applications/version-management/git-and-tools/scmpuff/default.nix

@@ -25,6 +25,5 @@ buildGoModule rec {
     homepage = "https://github.com/mroth/scmpuff";
     license = licenses.mit;
     maintainers = with maintainers; [ cpcloud ];
-    platforms = concatLists (with platforms; [ linux darwin windows ]);
   };
 }