buildman: rm unused imports

buildman/asyncutil.py

@@ -1,4 +1,4 @@
-from functools import partial, wraps
+from functools import partial
 from trollius import get_event_loop
 
 

buildman/manager/ephemeral.py

@@ -4,7 +4,6 @@ import uuid
 import calendar
 import os.path
 import json
-import boto
 
 from datetime import datetime, timedelta
 from trollius import From, coroutine, Return, async

buildman/server.py

@@ -9,7 +9,6 @@ from autobahn.wamp import types
 from aiowsgi import create_server as create_wsgi_server
 from flask import Flask
 from threading import Event
-from trollius.tasks import Task
 from trollius.coroutines import From
 from datetime import timedelta