Remove unused import

wo/cli/plugins/sitedb.py

@@ -1,13 +1,8 @@
-from sqlalchemy import Column, DateTime, String, Integer, Boolean
-from sqlalchemy import ForeignKey, func
-from sqlalchemy.orm import relationship, backref
-from sqlalchemy.ext.declarative import declarative_base
 from wo.core.logging import Log
 from wo.core.database import db_session
 from wo.cli.plugins.models import SiteDB
 
 
-
 def addNewSite(self, site, stype, cache, path,
                enabled=True, ssl=False, fs='ext4', db='mysql',
                db_name=None, db_user=None, db_password=None,