Remove useless imports

wo/cli/plugins/maintenance.py

@@ -1,6 +1,5 @@
 """Maintenance Plugin for WordOps"""
 
-from cement.core import handler, hook
 from cement.core.controller import CementBaseController, expose
 
 from wo.core.aptget import WOAptGet

wo/cli/plugins/stack.py

@@ -2,7 +2,6 @@
 
 import os
 
-from cement.core import handler, hook
 from cement.core.controller import CementBaseController, expose
 
 from wo.cli.plugins.stack_migrate import WOStackMigrateController