Removed references to old custom config

Also updated unittests to pass.

tests/plugins/test_time.py

@@ -1,5 +1,6 @@
 from unittest import mock
 
+from oslo_config import cfg
 import pytz
 
 from aprsd.plugins import time as time_plugin
@@ -8,6 +9,9 @@ from aprsd.utils import fuzzy
 from .. import fake, test_plugin
 
 
+CONF = cfg.CONF
+
+
 class TestTimePlugins(test_plugin.TestPlugin):
 
     @mock.patch("aprsd.plugins.time.TimePlugin._get_local_tz")
@@ -25,7 +29,8 @@ class TestTimePlugins(test_plugin.TestPlugin):
         h = int(local_t.strftime("%H"))
         m = int(local_t.strftime("%M"))
         fake_time.tm_sec = 13
-        time = time_plugin.TimePlugin(self.config)
+        CONF.callsign = fake.FAKE_TO_CALLSIGN
+        time = time_plugin.TimePlugin()
 
         packet = fake.fake_packet(
             message="location",