--- a/src/Pure/General/symbol.scala Tue Jun 09 20:29:23 2009 +0200
+++ b/src/Pure/General/symbol.scala Tue Jun 09 20:40:19 2009 +0200
@@ -6,8 +6,6 @@
package isabelle
-import java.io.File
-
import scala.io.Source
import scala.collection.jcl
import scala.util.matching.Regex