remove unused imports updates.py

Author: hduelme

python3/cinnamon/updates.py

@@ -1,7 +1,5 @@
 #!/usr/bin/python3
 
-import os
-import sys
 import gi
 import gettext
 
@@ -10,15 +8,14 @@
 gettext.install("cinnamon", "/usr/share/locale", names=["ngettext"])
 
 from . import harvester
-from .harvester import SpiceUpdate
 
 SPICE_TYPE_APPLET = "applet"
 SPICE_TYPE_DESKLET = "desklet"
 SPICE_TYPE_THEME = "theme"
 SPICE_TYPE_EXTENSION = "extension"
 SPICE_TYPES = [SPICE_TYPE_APPLET, SPICE_TYPE_DESKLET, SPICE_TYPE_THEME, SPICE_TYPE_EXTENSION]
 
-class UpdateManager():
+class UpdateManager:
     def __init__(self):
         self.harvesters = {}
         for spice_type in SPICE_TYPES: