backend_tkagg: delete dead code

svn path=/trunk/matplotlib/; revision=8739

Author: efiring

lib/matplotlib/backends/backend_tkagg.py

@@ -213,18 +213,6 @@ def filter_destroy(evt):
         self._master = master
         self._tkcanvas.focus_set()
 
-        # a dict from func-> cbook.Scheduler threads
-        self.sourced = dict()
-
-        # call the idle handler
-        def on_idle(*ignore):
-            self.idle_event()
-            return True
-
-        # disable until you figure out how to handle threads and interrupts
-        #t = cbook.Idle(on_idle)
-        #self._tkcanvas.after_idle(lambda *ignore: t.start())
-
     def resize(self, event):
         width, height = event.width, event.height
         if self._resize_callback is not None: