src/Pure/ROOT.ML

 use "General/balanced_tree.ML";
 use "General/graph.ML";
 use "General/linear_set.ML";
 use "General/buffer.ML";
 use "General/xml.ML";
-use "General/xml_data.ML";
 use "General/pretty.ML";
 use "General/path.ML";
 use "General/url.ML";
 use "General/file.ML";
 use "General/yxml.ML";