'Remove all code analysis markers'

def cleanup_code_analysis(self):

    self.setUpdatesEnabled(False)
    self.clear_extra_selections('code_analysis')
    for data in self.blockuserdata_list[:]:
        data.code_analysis = []
        if data.is_empty():
            del data
    self.setUpdatesEnabled(True)
    self.scrollflagarea.update()
    self.linenumberarea.update()
