flows: add invalidation designation, use as default logout action

passbook/core/views/authentication.py

@@ -1,21 +0,0 @@
-"""passbook core authentication views"""
-from django.contrib import messages
-from django.contrib.auth import logout
-from django.contrib.auth.mixins import LoginRequiredMixin
-from django.http import HttpRequest, HttpResponse
-from django.shortcuts import redirect, reverse
-from django.utils.translation import ugettext as _
-from django.views import View
-from structlog import get_logger
-
-LOGGER = get_logger()
-
-
-class LogoutView(LoginRequiredMixin, View):
-    """Log current user out"""
-
-    def dispatch(self, request: HttpRequest) -> HttpResponse:
-        """Log current user out"""
-        logout(request)
-        messages.success(request, _("You've successfully been logged out."))
-        return redirect(reverse("passbook_flows:default-auth"))