old_contents: from scoring_engine.config_loader import ConfigLoader
  
  
  class MockConfig(object):
      def __init__(self, location):
          self.file_location = location
  
      @property
      def config(self):
          return ConfigLoader(self.file_location)
  
      @property
      def checks_location(self):
          return 'scoring_engine/checks'
  
new_contents: from scoring_engine.config_loader import ConfigLoader
  
  
  class MockConfig(object):
      def __init__(self, location):
          self.file_location = location
  
      @property
      def config(self):
          return ConfigLoader(self.file_location)
  
subject: Remove unnecessary config mock property