[Sync] refactoring, removed old code, cleanup

utils/Sync/test/sync/test_document.py

@@ -3,8 +3,6 @@ import unittest
 import settings
 from sync.data import scan_subdirs
 from sync.data.fs import FSProvider
-from sync.models.Document import Document
-from utils.fn import lmap
 
 
 class MyTestCase(unittest.TestCase):