diff --git a/weboob/backends/ehentai/backend.py b/weboob/backends/ehentai/backend.py
index a3f3cd01..cc48127d 100644
--- a/weboob/backends/ehentai/backend.py
+++ b/weboob/backends/ehentai/backend.py
@@ -19,10 +19,9 @@
 
 from __future__ import with_statement
 
-import time
 from weboob.capabilities.gallery import ICapGallery
 from weboob.tools.backend import BaseBackend
-from weboob.tools.misc import to_unicode, ratelimit
+from weboob.tools.misc import ratelimit
 from weboob.tools.value import Value, ValuesDict
 
 from .browser import EHentaiBrowser
@@ -45,10 +44,6 @@ class EHentaiBackend(BaseBackend, ICapGallery):
         Value('username', label='Username', default=''),
         Value('password', label='Password', default='', masked=True))
 
-    def __init__(self, *args, **kwargs):
-        BaseBackend.__init__(self, *args, **kwargs)
-        self.time_last_retreived = 0
-
     def create_default_browser(self):
         return self.create_browser(
                 self.config['domain'],