diff --git a/qubesmanager/thread_monitor.py b/qubesmanager/thread_monitor.py
deleted file mode 100644
index 8515aff..0000000
--- a/qubesmanager/thread_monitor.py
+++ /dev/null
@@ -1,42 +0,0 @@
-#!/usr/bin/python2
-#
-# The Qubes OS Project, http://www.qubes-os.org
-#
-# Copyright (C) 2011  Marek Marczykowski <marmarek@mimuw.edu.pl>
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License along
-# with this program; if not, see <http://www.gnu.org/licenses/>.
-#
-#
-
-
-import PyQt4.QtCore  # pylint: disable=import-error
-
-import threading
-
-class ThreadMonitor(PyQt4.QtCore.QObject):
-    def __init__(self):
-        self.success = True
-        self.error_msg = None
-        self.event_finished = threading.Event()
-
-    def set_error_msg(self, error_msg):
-        self.success = False
-        self.error_msg = error_msg
-        self.set_finished()
-
-    def is_finished(self):
-        return self.event_finished.is_set()
-
-    def set_finished(self):
-        self.event_finished.set()