remove unused methods

src/ploneintranet/workspace/tests/base.py

@@ -20,19 +20,18 @@ def setUp(self):
         self.request = self.portal.REQUEST
 
     def login(self, username):
-        login(self.portal, username)
-
-    def login_as_portal_owner(self):
-        z2.login(self.app['acl_users'], SITE_OWNER_NAME)
-
-    def login_as(self, username):
         """
         helper method to login as specific user
+
+        :param username: the username of the user to add to the group
+        :type username: str
+        :rtype: None
+
         """
-        z2.login(self.portal['acl_users'], username)
+        login(self.portal, username)
 
-    def logout(self):
-        z2.logout()
+    def login_as_portal_owner(self):
+        z2.login(self.app['acl_users'], SITE_OWNER_NAME)
 
     def add_user_to_workspace(self, username, workspace, groups=None):
         """