Fix python lint

cuegui/cuegui/Main.py

@@ -78,9 +78,6 @@ def startup(app_name, app_version, argv):
     mainWindow.displayStartupNotice()
     mainWindow.show()
 
-    # Custom qt message handler to ignore known warnings
-    QtCore.qInstallMessageHandler(warning_handler)
-
     # Open all windows that were open when the app was last closed
     for name in mainWindow.windows_names[1:]:
         if settings.value("%s/Open" % name, False):
@@ -95,19 +92,6 @@ def startup(app_name, app_version, argv):
     app.aboutToQuit.connect(closingTime)  # pylint: disable=no-member
     app.exec_()
 
-def warning_handler(msg_type, msg_log_context, msg_string):
-    """
-    Ignore known warning messages (from LogViewPlugin for now) that
-    happens when multi-threaded/multiple updates in a short span
-    """
-    if ('QTextCursor::setPosition:' in msg_string or 
-        'SelectionRequest too old' in msg_string):
-        return
-    else:
-        # Todo: write to a log file
-        print ('{}: {}, Message: {}'.format(
-            str(msg_type), str(msg_log_context), str(msg_string)))
-
 def closingTime():
     """Window close callback."""
     logger.info("Closing all threads...")