minor errors

openlp/core/ui/mainwindow.py

@@ -550,7 +550,6 @@ class MainWindow(QtGui.QMainWindow, Ui_MainWindow):
         log.info(u'Load data from Settings')
         self.settingsForm.postSetUp()
 
-
     def versionCheck(self, version):
         """
         Checks the version of the Application called from openlp.pyw

openlp/plugins/presentations/presentationplugin.py

@@ -53,7 +53,6 @@ class PresentationPlugin(Plugin):
         log.info(u'Presentations Initialising')
         Plugin.initialise(self)
         self.insert_toolbox_item()
-        presentation_types = []
         for controller in self.controllers:
             if self.controllers[controller].enabled:
                 self.controllers[controller].start_process()