--- a/src/Pure/Admin/build_history.scala Tue Jan 19 20:38:05 2021 +0100
+++ b/src/Pure/Admin/build_history.scala Wed Jan 20 21:18:40 2021 +0100
@@ -7,11 +7,6 @@
package isabelle
-import java.io.{File => JFile}
-import java.time.format.DateTimeFormatter
-import java.util.Locale
-
-
object Build_History
{
/* log files */
--- a/src/Pure/Admin/isabelle_cronjob.scala Tue Jan 19 20:38:05 2021 +0100
+++ b/src/Pure/Admin/isabelle_cronjob.scala Wed Jan 20 21:18:40 2021 +0100
@@ -10,7 +10,6 @@
import java.nio.file.Files
import scala.annotation.tailrec
-import scala.collection.mutable
object Isabelle_Cronjob