diff -r 64378eaf393d -r 3f5e6da08687 src/Pure/PIDE/markup.scala
--- a/src/Pure/PIDE/markup.scala	Wed Dec 09 20:33:02 2020 +0100
+++ b/src/Pure/PIDE/markup.scala	Wed Dec 09 22:07:14 2020 +0100
@@ -612,7 +612,6 @@
   object Task_Statistics extends Properties_Function("task_statistics")
 
   object Loading_Theory extends Properties_Function("loading_theory")
-  object Finished_Theory extends Name_Function("finished_theory")
   object Build_Session_Finished extends Function("build_session_finished")
 
   object Commands_Accepted extends Function("commands_accepted")