Revert "Return 404 for old tokens."

This reverts commit 9e576b9f49.

src/tokens/views.py

@@ -1,11 +1,9 @@
 from django.contrib import messages
 from django.contrib.auth.mixins import LoginRequiredMixin
-from django.http import Http404
 from django.shortcuts import redirect
 from django.urls import reverse
 from django.views.generic import DetailView, ListView
 
-from ..utils.models import CampReadOnlyModeError
 from .models import Token, TokenFind
 
 
@@ -15,14 +13,10 @@ class TokenFindView(LoginRequiredMixin, DetailView):
     slug_url_kwarg = "token"
 
     def get(self, request, *args, **kwargs):
-        # register this token find if it isn't already
-        try:
+        # register this tokenview if it isn't already
         token, created = TokenFind.objects.get_or_create(
             token=self.get_object(), user=request.user
         )
-        except CampReadOnlyModeError:
-            raise Http404
-
         if created:
             messages.success(
                 self.request,