Remove the revCount attribute from the generated flake registry (#316225)

                  type = "path";

                  path = config.flake.outPath;

                } // filterAttrs

                  (n: _: n == "lastModified" || n == "rev" || n == "revCount" || n == "narHash")

                  (n: _: n == "lastModified" || n == "rev" || n == "narHash")

                  config.flake

              ));

            };