diff --git a/mopidy/utils/settings.py b/mopidy/utils/settings.py
index 051f0f1c..b61476f5 100644
--- a/mopidy/utils/settings.py
+++ b/mopidy/utils/settings.py
@@ -184,42 +184,6 @@ def validate_settings(defaults, settings):
     return errors
 
 
-def list_settings_optparse_callback(*args):
-    """
-    Prints a list of all settings.
-
-    Called by optparse when Mopidy is run with the :option:`--list-settings`
-    option.
-    """
-    from mopidy import settings
-    print format_settings_list(settings)
-    sys.exit(0)
-
-
-def format_settings_list(settings):
-    errors = settings.get_errors()
-    lines = []
-    for (key, value) in sorted(settings.current.iteritems()):
-        default_value = settings.default.get(key)
-        masked_value = mask_value_if_secret(key, value)
-        lines.append('%s: %s' % (
-            key, formatting.indent(pprint.pformat(masked_value), places=2)))
-        if value != default_value and default_value is not None:
-            lines.append(
-                '  Default: %s' %
-                formatting.indent(pprint.pformat(default_value), places=4))
-        if errors.get(key) is not None:
-            lines.append('  Error: %s' % errors[key])
-    return '\n'.join(lines)
-
-
-def mask_value_if_secret(key, value):
-    if key.endswith('PASSWORD') and value:
-        return '********'
-    else:
-        return value
-
-
 def did_you_mean(setting, defaults):
     """Suggest most likely setting based on levenshtein."""
     if not defaults:
diff --git a/tests/utils/settings_test.py b/tests/utils/settings_test.py
index 2c13066c..787337d2 100644
--- a/tests/utils/settings_test.py
+++ b/tests/utils/settings_test.py
@@ -59,20 +59,6 @@ class ValidateSettingsTest(unittest.TestCase):
             self.defaults, {'FOO': '', 'BAR': ''})
         self.assertEqual(len(result), 2)
 
-    def test_masks_value_if_secret(self):
-        secret = setting_utils.mask_value_if_secret('SPOTIFY_PASSWORD', 'bar')
-        self.assertEqual('********', secret)
-
-    def test_does_not_mask_value_if_not_secret(self):
-        not_secret = setting_utils.mask_value_if_secret(
-            'SPOTIFY_USERNAME', 'foo')
-        self.assertEqual('foo', not_secret)
-
-    def test_does_not_mask_value_if_none(self):
-        not_secret = setting_utils.mask_value_if_secret(
-            'SPOTIFY_USERNAME', None)
-        self.assertEqual(None, not_secret)
-
 
 class SettingsProxyTest(unittest.TestCase):
     def setUp(self):
@@ -179,54 +165,6 @@ class SettingsProxyTest(unittest.TestCase):
         self.settings.validate(interactive=True)
 
 
-class FormatSettingListTest(unittest.TestCase):
-    def setUp(self):
-        self.settings = setting_utils.SettingsProxy(settings)
-
-    def test_contains_the_setting_name(self):
-        self.settings.TEST = 'test'
-        result = setting_utils.format_settings_list(self.settings)
-        self.assertIn('TEST:', result, result)
-
-    def test_repr_of_a_string_value(self):
-        self.settings.TEST = 'test'
-        result = setting_utils.format_settings_list(self.settings)
-        self.assertIn("TEST: u'test'", result, result)
-
-    def test_repr_of_an_int_value(self):
-        self.settings.TEST = 123
-        result = setting_utils.format_settings_list(self.settings)
-        self.assertIn("TEST: 123", result, result)
-
-    def test_repr_of_a_tuple_value(self):
-        self.settings.TEST = (123, 'abc')
-        result = setting_utils.format_settings_list(self.settings)
-        self.assertIn("TEST: (123, u'abc')", result, result)
-
-    def test_passwords_are_masked(self):
-        self.settings.TEST_PASSWORD = 'secret'
-        result = setting_utils.format_settings_list(self.settings)
-        self.assertNotIn("TEST_PASSWORD: u'secret'", result, result)
-        self.assertIn("TEST_PASSWORD: u'********'", result, result)
-
-    def test_short_values_are_not_pretty_printed(self):
-        self.settings.FRONTEND = ('mopidy.frontends.mpd.MpdFrontend',)
-        result = setting_utils.format_settings_list(self.settings)
-        self.assertIn(
-            "FRONTEND: (u'mopidy.frontends.mpd.MpdFrontend',)", result)
-
-    def test_long_values_are_pretty_printed(self):
-        self.settings.FRONTEND = (
-            u'mopidy.frontends.mpd.MpdFrontend',
-            u'mopidy.frontends.lastfm.LastfmFrontend')
-        result = setting_utils.format_settings_list(self.settings)
-        self.assertIn(
-            "FRONTEND: \n"
-            "  (u'mopidy.frontends.mpd.MpdFrontend',\n"
-            "   u'mopidy.frontends.lastfm.LastfmFrontend')",
-            result)
-
-
 class DidYouMeanTest(unittest.TestCase):
     def testSuggestoins(self):
         defaults = {