Delete unprotected endpoint

This is a security breach ; that unauthenticated endpoint allows anyone to
trigger invoices generation in coin on all members.

Seems to have been an accidental commit. The same feature is achieved through
the `charge_subscriptions` command.

coin/billing/urls.py

@@ -10,6 +10,4 @@ urlpatterns = patterns(
     url(r'^invoice/(?P<id>.+)/pdf$', views.invoice_pdf, name="invoice_pdf"),
     url(r'^invoice/(?P<id>.+)$', views.invoice, name="invoice"),
     # url(r'^invoice/(?P<id>.+)/validate$', views.invoice_validate, name="invoice_validate"),
-
-    url('invoice/create_all_members_invoices_for_a_period', views.gen_invoices)
 )

coin/billing/views.py

@@ -11,15 +11,9 @@ from sendfile import sendfile
 from coin.billing.models import Invoice
 from coin.members.models import Member
 from coin.html2pdf import render_as_pdf
-from coin.billing.create_subscriptions_invoices import create_all_members_invoices_for_a_period
 from coin.billing.utils import get_invoice_from_id_or_number, assert_user_can_view_the_invoice
 
 
-def gen_invoices(request):
-    create_all_members_invoices_for_a_period()
-    return HttpResponse('blop')
-
-
 def invoice_pdf(request, id):
     """
     Renvoi une facture générée en format pdf