Fixed duplicated streams. Removed unneeded code for connection checkers

src/controller/mainController.py

@@ -1247,17 +1247,15 @@ class Controller(object):
  def manage_stream_errors(self, session):
   log.error(" Restarting %s session streams. It will be destroyed" % (session,))
   s = session_.sessions[session]
-  try:
-   if hasattr(s, "main_stream"):
-    self.main_stream.disconnect()
-    log.error("main stream disconnected")
-    del s.main_stream
-   self.timelinesStream.disconnect()
+  if hasattr(s, "main_stream"):
+   s.main_stream.disconnect()
+   log.error("main stream disconnected")
+   del s.main_stream
+  if hasattr(s, "timelinesStream"):
+   s.timelinesStream.disconnect()
    del s.timelinesStream
-   s.counter = 0
-   s.reconnection_function_active = False
-  except AttributeError:
-   log.error("Error deleting some thing")
+  s.counter = 0
+  s.reconnection_function_active = False
 #  for i in self.buffers:
 #   if i.invisible == True and i.session.session_id == s.session_id and i.type != "people":
 #    i.start_stream()