--- a/src/Pure/Thy/html.scala Sat Apr 26 13:18:46 2014 +0200 +++ b/src/Pure/Thy/html.scala Sat Apr 26 13:32:28 2014 +0200 @@ -8,9 +8,6 @@ package isabelle -import scala.collection.mutable.ListBuffer - - object HTML { /* encode text */