Black and flake fixups (still no check_manifest working reliably)

mopidy_iris/__init__.py

@@ -30,7 +30,7 @@ class Extension(ext.Extension):
         schema["spotify_authorization_url"] = config.String()
         schema["lastfm_authorization_url"] = config.String()
         schema["genius_authorization_url"] = config.String()
-        schema["data_dir"] = config.String() # Deprecated
+        schema["data_dir"] = config.String()  # Deprecated
         return schema
 
     def setup(self, registry):

mopidy_iris/core.py

@@ -13,7 +13,6 @@ import pickle
 from pkg_resources import parse_version
 from tornado.escape import json_encode
 from tornado.httpclient import AsyncHTTPClient, HTTPRequest
-from pathlib import Path
 
 from . import Extension
 from .system import IrisSystemThread