diff --git a/libs/ardour/ardour/session.h b/libs/ardour/ardour/session.h
index c63e6e3ebe..e5032ad8c2 100644
--- a/libs/ardour/ardour/session.h
+++ b/libs/ardour/ardour/session.h
@@ -668,9 +668,6 @@ class Session : public PBD::StatefulDestructible, public PBD::ScopedConnectionLi
 	void begin_reversible_command (const std::string& cmd_name);
 	void commit_reversible_command (Command* cmd = 0);
 
-	UndoTransaction* start_reversible_command (const std::string& cmd_name);
-	void finish_reversible_command (UndoTransaction&);
-
 	void add_command (Command *const cmd) {
 		assert(!_current_trans.empty ());
 		_current_trans.top()->add_command (cmd);
diff --git a/libs/ardour/session_state.cc b/libs/ardour/session_state.cc
index cd9cb7b9b2..6fdaf749ab 100644
--- a/libs/ardour/session_state.cc
+++ b/libs/ardour/session_state.cc
@@ -2353,23 +2353,6 @@ Session::all_route_group() const
         return *_all_route_group;
 }
 
-UndoTransaction*
-Session::start_reversible_command (const string& name)
-{
-	UndoTransaction* trans = new UndoTransaction();
-	trans->set_name(name);
-	return trans;
-}
-
-void
-Session::finish_reversible_command (UndoTransaction& ut)
-{
-	struct timeval now;
-	gettimeofday(&now, 0);
-	ut.set_timestamp(now);
-	_history.add (&ut);
-}
-
 void
 Session::add_commands (vector<Command*> const & cmds)
 {