Remove useless __all__ in modules

They bring nothing of value (we never use import * anyway) and introduce
a maintenance burden.

The __all__ that I left might not be very useful either but at least
they are not a pain to maintain; they are also used by pyflakes in some
cases.

modules/aum/optim/profiles_walker.py

@@ -18,8 +18,6 @@
 # along with weboob. If not, see <http://www.gnu.org/licenses/>.
 
 
-
-
 from random import randint
 
 from weboob.tools.browser import BrowserUnavailable
@@ -27,9 +25,6 @@ from weboob.capabilities.dating import Optimization
 from weboob.tools.log import getLogger
 
 
-__all__ = ['ProfilesWalker']
-
-
 class ProfilesWalker(Optimization):
     def __init__(self, sched, storage, browser):
         self.sched = sched