[mod] remove unused imports

src/yunohost/app.py

@@ -24,10 +24,8 @@
     Manage apps
 """
 import os
-import sys
 import json
 import shutil
-import stat
 import yaml
 import time
 import re

src/yunohost/backup.py

@@ -25,7 +25,6 @@
 """
 import os
 import re
-import sys
 import json
 import errno
 import time

src/yunohost/hook.py

@@ -24,11 +24,8 @@
     Manage hooks
 """
 import os
-import sys
 import re
-import json
 import errno
-import subprocess
 from glob import iglob
 
 from moulinette.core import MoulinetteError

src/yunohost/monitor.py

@@ -35,7 +35,7 @@ import errno
 import os
 import dns.resolver
 import cPickle as pickle
-from datetime import datetime, timedelta
+from datetime import datetime
 
 from moulinette.core import MoulinetteError
 from moulinette.utils.log import getActionLogger

src/yunohost/service.py

@@ -36,7 +36,7 @@ from difflib import unified_diff
 from moulinette.core import MoulinetteError
 from moulinette.utils import log, filesystem
 
-from yunohost.hook import hook_list, hook_callback
+from yunohost.hook import hook_callback
 
 
 base_conf_path = '/home/yunohost.conf'

src/yunohost/user.py

@@ -30,7 +30,6 @@ import string
 import json
 import errno
 import subprocess
-import math
 import re
 
 from moulinette.core import MoulinetteError